rename build-webUI with build_webUI

package update (vite fix)
Merge pull request #3031 from proddy/core3
2026-04-29 12:05:12 +00:00 · 2026-04-20 15:46:54 +02:00 · 2026-04-20 15:46:39 +02:00 · 2026-04-19 19:15:28 +02:00 · 2026-04-19 19:13:15 +02:00 · 2026-04-19 15:15:14 +02:00
77 changed files with 1145 additions and 753 deletions
--- a/.github/workflows/dev_release.yml
+++ b/.github/workflows/dev_release.yml
@@ -28,7 +28,7 @@ jobs:
          node-version: 24

      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
  
      - name: Enable Corepack
        run: corepack enable pnpm
@@ -62,13 +62,13 @@ jobs:
          platformio run

      - name: Commit the generated files
-        uses: stefanzweifel/git-auto-commit-action@v7
+        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: "chore: update generated files for v${{steps.build_info.outputs.VERSION}}"

      - name: Create GitHub Release
        id: 'automatic_releases'
-        uses: emsesp/action-automatic-releases@v1.0.1
+        uses: emsesp/action-automatic-releases@v1.0.0
        with:
          repo_token: '${{ secrets.GITHUB_TOKEN }}'
          title: Development Build v${{steps.build_info.outputs.VERSION}}
--- a/.github/workflows/github-releases-to-discord.yml
+++ b/.github/workflows/github-releases-to-discord.yml
@@ -11,7 +11,7 @@ jobs:
      contents: read
    steps:
      - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
        
      - name: GitHub Releases To Discord
        uses: SethCohen/github-releases-to-discord@v1.13.1
--- a/.github/workflows/pr_check.yml
+++ b/.github/workflows/pr_check.yml
@@ -15,7 +15,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5

      - name: Install python 3.13
        uses: actions/setup-python@v6
--- a/.github/workflows/sonar_check.yml
+++ b/.github/workflows/sonar_check.yml
@@ -19,7 +19,7 @@ jobs:
      BUILD_WRAPPER_OUT_DIR: bw-output
    steps:
      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
        with:
          fetch-depth: 0
      - name: Install Build Wrapper
--- a/.github/workflows/stable_release.yml
+++ b/.github/workflows/stable_release.yml
@@ -26,7 +26,7 @@ jobs:
          node-version: 24

      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
  
      - name: Enable Corepack
        run: corepack enable pnpm
@@ -54,7 +54,7 @@ jobs:
          platformio run

      - name: Create GitHub Release
-        uses: emsesp/action-automatic-releases@v1.0.1
+        uses: emsesp/action-automatic-releases@v1.0.0
        with:
          repo_token: '${{ secrets.GITHUB_TOKEN }}'
          prerelease: false
--- a/.github/workflows/test_release.yml
+++ b/.github/workflows/test_release.yml
@@ -28,7 +28,7 @@ jobs:
          node-version: 24

      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5

      - name: Enable Corepack
        run: corepack enable pnpm
@@ -63,7 +63,7 @@ jobs:

      - name: Create GitHub Release
        id: 'automatic_releases'
-        uses: emsesp/action-automatic-releases@v1.0.1
+        uses: emsesp/action-automatic-releases@v1.0.0
        with:
          repo_token: '${{ secrets.GITHUB_TOKEN }}'
          title: Test Build v${{steps.build_info.outputs.VERSION}}
--- a/CHANGELOG_LATEST.md
+++ b/CHANGELOG_LATEST.md
@@ -12,6 +12,7 @@ For more details go to [emsesp.org](https://emsesp.org/).
 - prometheus metrics for temperature/analog/scheduler/custom [#2962](https://github.com/emsesp/EMS-ESP32/issues/2962)
 - boiler pumpkick [#2965](https://github.com/emsesp/EMS-ESP32/discussions/2965)
 - heatpump reset [#2933](https://github.com/emsesp/EMS-ESP32/issues/2933)
+- e-mail notification using ReadyMail Client
 - 2.nd freshwater module (dhw4, dhw5) [#2991](https://github.com/emsesp/EMS-ESP32/issues/2991)
 - full system backup and restore

@@ -19,7 +20,6 @@ For more details go to [emsesp.org](https://emsesp.org/).

 - SRC climate creation [#2936](https://github.com/emsesp/EMS-ESP32/issues/2936) and [#2960](https://github.com/emsesp/EMS-ESP32/issues/2960)
 - missing translations [#3015](https://github.com/emsesp/EMS-ESP32/issues/3015)
- custom entities check fetch length

 ## Changed

@@ -31,6 +31,8 @@ For more details go to [emsesp.org](https://emsesp.org/).
 - support `minflowtemp` and `baseflowtemp` [#2969](https://github.com/emsesp/EMS-ESP32/discussions/2969)
 - update version if it is 00.00 in first read [#2981](https://github.com/emsesp/EMS-ESP32/issues/2981)
 - device class for % values [#2980](https://github.com/emsesp/EMS-ESP32/issues/2980)
+- use tasmota core 2026.03.30
+- secure mqtt uses ESP_SSLClient
 - fetch telegrams: set length to fetch [#3017](https://github.com/emsesp/EMS-ESP32/issues/3017)
 - move http client from stack to heap
 - heap optimizations [#3021](https://github.com/emsesp/EMS-ESP32/discussions/3021)
--- a/2
+++ b/2
@@ -47,7 +47,7 @@ MAKEFLAGS += -j$(JOBS) -l$(shell echo $$(($(JOBS) * 2)))
 #----------------------------------------------------------------------
 TARGET    := emsesp
 BUILD     := build
-SOURCES   := src/core src/devices src/web src/test lib_standalone lib/espMqttClient/src lib/espMqttClient/src/*         lib/ArduinoJson/src lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src   lib/PButton 
+SOURCES   := src/core src/devices src/web src/test lib_standalone       lib/espMqttClient/src lib/espMqttClient/src/*         lib/ArduinoJson/src lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src   lib/PButton 
 INCLUDES  := src/core src/devices src/web src/test lib_standalone lib/* lib/espMqttClient/src lib/espMqttClient/src/Transport lib/ArduinoJson/src lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src   lib/uuid-telnet/src lib/uuid-syslog/src
 LIBRARIES :=

--- a/boards/c3_mini_4M.json
+++ b/boards/c3_mini_4M.json
@@ -5,7 +5,7 @@
      },
      "core": "esp32",
      "extra_flags": [
-        "-DTASMOTA_SDK",
+        "-DNO_TLS_SUPPORT",
        "-DARDUINO_LOLIN_C3_MINI",
        "-DARDUINO_USB_MODE=1",
        "-DARDUINO_USB_CDC_ON_BOOT=1"
--- a/boards/s2_4M_P.json
+++ b/boards/s2_4M_P.json
@@ -6,7 +6,7 @@
      "core": "esp32",
      "extra_flags": [
        "-DBOARD_HAS_PSRAM",
-        "-DTASMOTA_SDK",
+        "-DNO_TLS_SUPPORT",
        "-DARDUINO_USB_CDC_ON_BOOT=1",
        "-DARDUINO_USB_MODE=0"
      ],
--- a/boards/s3_32M_P.json
+++ b/boards/s3_32M_P.json
@@ -21,7 +21,7 @@
      "arduino",
      "espidf"
    ],
-    "name": "Espressif ESP32-S3 32M Flash OPI PSRAM, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32-S3 32M Flash OPI PSRAM, 4608KB Code/OTA, 2MB FS",
    "upload": {
      "flash_size": "32MB",
      "maximum_ram_size": 327680,
--- a/boards/s_16M.json
+++ b/boards/s_16M.json
@@ -1,7 +1,7 @@
 {
    "build": {
      "core": "esp32",
-      "extra_flags": "-DTASMOTA_SDK",
+      "extra_flags": "-DNO_TLS_SUPPORT",
      "f_cpu": "240000000L",
      "f_flash": "40000000L",
      "flash_mode": "dio",
@@ -19,7 +19,7 @@
      "arduino",
      "espidf"
    ],
-    "name": "Espressif ESP32 16M Flash, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32 16M Flash, 4608KB Code/OTA, 2MB FS",
    "upload": {
      "flash_size": "16MB",
      "maximum_ram_size": 327680,
--- a/boards/s_16M_P.json
+++ b/boards/s_16M_P.json
@@ -19,7 +19,7 @@
      "arduino",
      "espidf"
    ],
-    "name": "Espressif ESP32 16M Flash DIO PSRAM, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32 16M Flash DIO PSRAM, 4608KB Code/OTA, 2MB FS",
    "upload": {
      "flash_size": "16MB",
      "maximum_ram_size": 327680,
--- a/boards/s_4M.json
+++ b/boards/s_4M.json
@@ -1,7 +1,7 @@
 {
    "build": {
      "core": "esp32",
-      "extra_flags": "-DTASMOTA_SDK",
+      "extra_flags": "-DNO_TLS_SUPPORT",
      "f_cpu": "240000000L",
      "f_flash": "40000000L",
      "flash_mode": "dio",
--- a/boards/seeed_xiao_esp32c6.json
+++ b/boards/seeed_xiao_esp32c6.json
@@ -2,6 +2,7 @@
  "build": {
    "core": "esp32",
    "extra_flags": [
+      "-DNO_TLS_SUPPORT",
      "-DARDUINO_XIAO_ESP32C6",
      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_USB_CDC_ON_BOOT=1"
--- a/docs/dump_telegrams.csv
+++ b/docs/dump_telegrams.csv
@@ -171,7 +171,6 @@ telegram_type_id,name,is_fetched
 0x0468,HPSet, 
 0x0469,HPSet, 
 0x046A,HPSet, 
-0x0470,RC300Summer2, 
 0x0471,RC300Summer2, 
 0x0472,RC300Summer2, 
 0x0473,RC300Summer2, 
@@ -179,6 +178,7 @@ telegram_type_id,name,is_fetched
 0x0475,RC300Summer2, 
 0x0476,RC300Summer2, 
 0x0477,RC300Summer2, 
+0x0478,RC300Summer2, 
 0x047B,HP2, 
 0x0484,HPSilentMode,fetched
 0x0485,HpCooling,fetched
--- a/interface/package.json
+++ b/interface/package.json
@@ -30,7 +30,7 @@
    "@mui/material": "^9.0.0",
    "@preact/compat": "^18.3.2",
    "@table-library/react-table-library": "4.1.15",
-    "alova": "3.5.1",
+    "alova": "^3.5.1",
    "async-validator": "^4.2.5",
    "etag": "^1.8.1",
    "formidable": "^3.5.4",
@@ -41,7 +41,7 @@
    "react": "^19.2.5",
    "react-dom": "^19.2.5",
    "react-icons": "^5.6.0",
-    "react-router": "^7.14.2",
+    "react-router": "^7.14.1",
    "react-toastify": "^11.1.0",
    "typesafe-i18n": "^5.27.1",
    "typescript": "^6.0.3"
@@ -62,10 +62,9 @@
    "prettier": "^3.8.3",
    "rollup-plugin-visualizer": "^7.0.1",
    "terser": "^5.46.1",
-    "typescript-eslint": "^8.59.0",
+    "typescript-eslint": "^8.58.2",
    "vite": "^8.0.9",
-    "vite-plugin-imagemin": "^0.6.1",
-    "vite-tsconfig-paths": "^6.1.1"
+    "vite-plugin-imagemin": "^0.6.1"
  },
-  "packageManager": "pnpm@10.33.1+sha512.05ba3c1d5d1c18f68df06470d74055e62d41fc110a0c660db1b2dfb2785327f04cf0f68345d4609bc52089e7fa0343c31593b2f9594e2c5d5da426230acc9820"
+  "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319"
 }
--- a/interface/pnpm-lock.yaml
+++ b/interface/pnpm-lock.yaml
@@ -30,7 +30,7 @@ importers:
        specifier: 4.1.15
        version: 4.1.15(@emotion/react@11.14.0(@types/react@19.2.14)(react@19.2.5))(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
      alova:
-        specifier: 3.5.1
+        specifier: ^3.5.1
        version: 3.5.1
      async-validator:
        specifier: ^4.2.5
@@ -63,8 +63,8 @@ importers:
        specifier: ^5.6.0
        version: 5.6.0(react@19.2.5)
      react-router:
-        specifier: ^7.14.2
-        version: 7.14.2(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+        specifier: ^7.14.1
+        version: 7.14.1(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
      react-toastify:
        specifier: ^11.1.0
        version: 11.1.0(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
@@ -118,17 +118,14 @@ importers:
        specifier: ^5.46.1
        version: 5.46.1
      typescript-eslint:
-        specifier: ^8.59.0
-        version: 8.59.0(eslint@10.2.1)(typescript@6.0.3)
+        specifier: ^8.58.2
+        version: 8.58.2(eslint@10.2.1)(typescript@6.0.3)
      vite:
        specifier: ^8.0.9
        version: 8.0.9(@types/node@25.6.0)(esbuild@0.27.4)(terser@5.46.1)
      vite-plugin-imagemin:
        specifier: ^0.6.1
        version: 0.6.1(vite@8.0.9(@types/node@25.6.0)(esbuild@0.27.4)(terser@5.46.1))
-      vite-tsconfig-paths:
-        specifier: ^6.1.1
-        version: 6.1.1(typescript@6.0.3)(vite@8.0.9(@types/node@25.6.0)(esbuild@0.27.4)(terser@5.46.1))

 packages:

@@ -1040,63 +1037,63 @@ packages:
  '@types/svgo@2.6.4':
    resolution: {integrity: sha512-l4cmyPEckf8moNYHdJ+4wkHvFxjyW6ulm9l4YGaOxeyBWPhBOT0gvni1InpFPdzx1dKf/2s62qGITwxNWnPQng==}

-  '@typescript-eslint/eslint-plugin@8.59.0':
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+  '@typescript-eslint/eslint-plugin@8.58.2':
+    resolution: {integrity: sha512-aC2qc5thQahutKjP+cl8cgN9DWe3ZUqVko30CMSZHnFEHyhOYoZSzkGtAI2mcwZ38xeImDucI4dnqsHiOYuuCw==}
    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
    peerDependencies:
-      '@typescript-eslint/parser': ^8.59.0
+      '@typescript-eslint/parser': ^8.58.2
      eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
      typescript: '>=4.8.4 <6.1.0'

-  '@typescript-eslint/parser@8.59.0':
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+  '@typescript-eslint/parser@8.58.2':
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    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
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-  '@typescript-eslint/visitor-keys@8.59.0':
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+  '@typescript-eslint/visitor-keys@8.58.2':
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  acorn-jsx@5.3.2:
@@ -1287,8 +1284,8 @@ packages:
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    engines: {node: '>=0.10.0'}

-  caniuse-lite@1.0.30001790:
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+  caniuse-lite@1.0.30001788:
+    resolution: {integrity: sha512-6q8HFp+lOQtcf7wBK+uEenxymVWkGKkjFpCvw5W25cmMwEDU45p1xQFBQv8JDlMMry7eNxyBaR+qxgmTUZkIRQ==}

  caw@2.0.1:
    resolution: {integrity: sha512-Cg8/ZSBEa8ZVY9HspcGUYaK63d/bN7rqS3CYCzEGUxuYv6UlmcjzDUz2fCFFHyTvUW5Pk0I+3hkA3iXlIj6guA==}
@@ -1523,8 +1520,8 @@ packages:
  duplexer3@0.1.5:
    resolution: {integrity: sha512-1A8za6ws41LQgv9HrE/66jyC5yuSjQ3L/KOpFtoBilsAK2iA2wuS5rTt1OCzIvtS2V7nVmedsUU+DGRcjBmOYA==}

-  electron-to-chromium@1.5.343:
-    resolution: {integrity: sha512-YHnQ3MXI08icvL9ZKnEBy05F2EQ8ob01UaMOuMbM8l+4UcAq6MPPbBTJBbsBUg3H8JeZNt+O4fjsoWth3p6IFg==}
+  electron-to-chromium@1.5.340:
+    resolution: {integrity: sha512-908qahOGocRMinT2nM3ajCEM99H4iPdv84eagPP3FfZy/1ZGeOy2CZYzjhms81ckOPCXPlW7LkY4XpxD8r1DrA==}

  emoji-regex@10.6.0:
    resolution: {integrity: sha512-toUI84YS5YmxW219erniWD0CIVOo46xGKColeNQRgOzDorgBi1v4D71/OFzgD9GO2UGKIv1C3Sp8DAn0+j5w7A==}
@@ -1986,9 +1983,6 @@ packages:
    resolution: {integrity: sha512-7dUi7RvCoT/xast/o/dLN53oqND4yk0nsHkhRgn9w65C4PofCLOoJ39iSOg+qVDdWQPIEj+eszMHQ+aLVwwQSg==}
    engines: {node: '>=8'}

-  globrex@0.1.2:
-    resolution: {integrity: sha512-uHJgbwAMwNFf5mLst7IWLNg14x1CkeqglJb/K3doi4dw6q2IvAAmM/Y81kevy83wP+Sst+nutFTYOGg3d1lsxg==}
-
  gopd@1.2.0:
    resolution: {integrity: sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==}
    engines: {node: '>= 0.4'}
@@ -2278,8 +2272,8 @@ packages:
    engines: {node: '>=6'}
    hasBin: true

-  jsonfile@6.2.1:
-    resolution: {integrity: sha512-zwOTdL3rFQ/lRdBnntKVOX6k5cKJwEc1HdilT71BWEu7J41gXIB2MRp+vxduPSwZJPWBxEzv4yH1wYLJGUHX4Q==}
+  jsonfile@6.2.0:
+    resolution: {integrity: sha512-FGuPw30AdOIUTRMC2OMRtQV+jkVj2cfPqSeWXv1NEAJ1qZ5zb1X6z1mFhbfOB/iy3ssJCD+3KuZ8r8C3uVFlAg==}

  junk@3.1.0:
    resolution: {integrity: sha512-pBxcB3LFc8QVgdggvZWyeys+hnrNWg4OcZIU/1X59k5jQdLBlCsYGRQaz234SqoRLTCgMH00fY0xRJH+F9METQ==}
@@ -2517,8 +2511,8 @@ packages:
  node-html-parser@6.1.13:
    resolution: {integrity: sha512-qIsTMOY4C/dAa5Q5vsobRpOOvPfC4pB61UVW2uSwZNUp0QU/jCekTal1vMmbO0DgdHeLUJpv/ARmDqErVxA3Sg==}

-  node-releases@2.0.38:
-    resolution: {integrity: sha512-3qT/88Y3FbH/Kx4szpQQ4HzUbVrHPKTLVpVocKiLfoYvw9XSGOX2FmD2d6DrXbVYyAQTF2HeF6My8jmzx7/CRw==}
+  node-releases@2.0.37:
+    resolution: {integrity: sha512-1h5gKZCF+pO/o3Iqt5Jp7wc9rH3eJJ0+nh/CIoiRwjRxde/hAHyLPXYN4V3CqKAbiZPSeJFSWHmJsbkicta0Eg==}

  normalize-package-data@2.5.0:
    resolution: {integrity: sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==}
@@ -2794,8 +2788,8 @@ packages:
  react-is@19.2.5:
    resolution: {integrity: sha512-Dn0t8IQhCmeIT3wu+Apm1/YVsJXsGWi6k4sPdnBIdqMVtHtv0IGi6dcpNpNkNac0zB2uUAqNX3MHzN8c+z2rwQ==}

-  react-router@7.14.2:
-    resolution: {integrity: sha512-yCqNne6I8IB6rVCH7XUvlBK7/QKyqypBFGv+8dj4QBFJiiRX+FG7/nkdAvGElyvVZ/HQP5N19wzteuTARXi5Gw==}
+  react-router@7.14.1:
+    resolution: {integrity: sha512-5BCvFskyAAVumqhEKh/iPhLOIkfxcEUz8WqFIARCkMg8hZZzDYX9CtwxXA0e+qT8zAxmMC0x3Ckb9iMONwc5jg==}
    engines: {node: '>=20.0.0'}
    peerDependencies:
      react: '>=18'
@@ -3176,16 +3170,6 @@ packages:
    peerDependencies:
      typescript: '>=4.8.4'

-  tsconfck@3.1.6:
-    resolution: {integrity: sha512-ks6Vjr/jEw0P1gmOVwutM3B7fWxoWBL2KRDb1JfqGVawBmO5UsvmWOQFGHBPl5yxYz4eERr19E6L7NMv+Fej4w==}
-    engines: {node: ^18 || >=20}
-    hasBin: true
-    peerDependencies:
-      typescript: ^5.0.0
-    peerDependenciesMeta:
-      typescript:
-        optional: true
-
  tslib@2.8.1:
    resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}

@@ -3210,8 +3194,8 @@ packages:
    peerDependencies:
      typescript: '>=3.5.1'

-  typescript-eslint@8.59.0:
-    resolution: {integrity: sha512-BU3ONW9X+v90EcCH9ZS6LMackcVtxRLlI3XrYyqZIwVSHIk7Qf7bFw1z0M9Q0IUxhTMZCf8piY9hTYaNEIASrw==}
+  typescript-eslint@8.58.2:
+    resolution: {integrity: sha512-V8iSng9mRbdZjl54VJ9NKr6ZB+dW0J3TzRXRGcSbLIej9jV86ZRtlYeTKDR/QLxXykocJ5icNzbsl2+5TzIvcQ==}
    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
    peerDependencies:
      eslint: ^8.57.0 || ^9.0.0 || ^10.0.0
@@ -3274,11 +3258,6 @@ packages:
    peerDependencies:
      vite: 5.x || 6.x || 7.x || 8.x

-  vite-tsconfig-paths@6.1.1:
-    resolution: {integrity: sha512-2cihq7zliibCCZ8P9cKJrQBkfgdvcFkOOc3Y02o3GWUDLgqjWsZudaoiuOwO/gzTzy17cS5F7ZPo4bsnS4DGkg==}
-    peerDependencies:
-      vite: '*'
-
  vite@8.0.9:
    resolution: {integrity: sha512-t7g7GVRpMXjNpa67HaVWI/8BWtdVIQPCL2WoozXXA7LBGEFK4AkkKkHx2hAQf5x1GZSlcmEDPkVLSGahxnEEZw==}
    engines: {node: ^20.19.0 || >=22.12.0}
@@ -4196,14 +4175,14 @@ snapshots:
    dependencies:
      '@types/node': 25.6.0

-  '@typescript-eslint/eslint-plugin@8.59.0(@typescript-eslint/parser@8.59.0(eslint@10.2.1)(typescript@6.0.3))(eslint@10.2.1)(typescript@6.0.3)':
+  '@typescript-eslint/eslint-plugin@8.58.2(@typescript-eslint/parser@8.58.2(eslint@10.2.1)(typescript@6.0.3))(eslint@10.2.1)(typescript@6.0.3)':
    dependencies:
      '@eslint-community/regexpp': 4.12.2
-      '@typescript-eslint/parser': 8.59.0(eslint@10.2.1)(typescript@6.0.3)
-      '@typescript-eslint/scope-manager': 8.59.0
-      '@typescript-eslint/type-utils': 8.59.0(eslint@10.2.1)(typescript@6.0.3)
-      '@typescript-eslint/utils': 8.59.0(eslint@10.2.1)(typescript@6.0.3)
-      '@typescript-eslint/visitor-keys': 8.59.0
+      '@typescript-eslint/parser': 8.58.2(eslint@10.2.1)(typescript@6.0.3)
+      '@typescript-eslint/scope-manager': 8.58.2
+      '@typescript-eslint/type-utils': 8.58.2(eslint@10.2.1)(typescript@6.0.3)
+      '@typescript-eslint/utils': 8.58.2(eslint@10.2.1)(typescript@6.0.3)
+      '@typescript-eslint/visitor-keys': 8.58.2
      eslint: 10.2.1
      ignore: 7.0.5
      natural-compare: 1.4.0
@@ -4212,41 +4191,41 @@ snapshots:
    transitivePeerDependencies:
      - supports-color

-  '@typescript-eslint/parser@8.59.0(eslint@10.2.1)(typescript@6.0.3)':
+  '@typescript-eslint/parser@8.58.2(eslint@10.2.1)(typescript@6.0.3)':
    dependencies:
-      '@typescript-eslint/scope-manager': 8.59.0
-      '@typescript-eslint/types': 8.59.0
-      '@typescript-eslint/typescript-estree': 8.59.0(typescript@6.0.3)
-      '@typescript-eslint/visitor-keys': 8.59.0
+      '@typescript-eslint/scope-manager': 8.58.2
+      '@typescript-eslint/types': 8.58.2
+      '@typescript-eslint/typescript-estree': 8.58.2(typescript@6.0.3)
+      '@typescript-eslint/visitor-keys': 8.58.2
      debug: 4.4.3
      eslint: 10.2.1
      typescript: 6.0.3
    transitivePeerDependencies:
      - supports-color

-  '@typescript-eslint/project-service@8.59.0(typescript@6.0.3)':
+  '@typescript-eslint/project-service@8.58.2(typescript@6.0.3)':
    dependencies:
-      '@typescript-eslint/tsconfig-utils': 8.59.0(typescript@6.0.3)
-      '@typescript-eslint/types': 8.59.0
+      '@typescript-eslint/tsconfig-utils': 8.58.2(typescript@6.0.3)
+      '@typescript-eslint/types': 8.58.2
      debug: 4.4.3
      typescript: 6.0.3
    transitivePeerDependencies:
      - supports-color

-  '@typescript-eslint/scope-manager@8.59.0':
+  '@typescript-eslint/scope-manager@8.58.2':
    dependencies:
-      '@typescript-eslint/types': 8.59.0
-      '@typescript-eslint/visitor-keys': 8.59.0
+      '@typescript-eslint/types': 8.58.2
+      '@typescript-eslint/visitor-keys': 8.58.2

-  '@typescript-eslint/tsconfig-utils@8.59.0(typescript@6.0.3)':
+  '@typescript-eslint/tsconfig-utils@8.58.2(typescript@6.0.3)':
    dependencies:
      typescript: 6.0.3

-  '@typescript-eslint/type-utils@8.59.0(eslint@10.2.1)(typescript@6.0.3)':
+  '@typescript-eslint/type-utils@8.58.2(eslint@10.2.1)(typescript@6.0.3)':
    dependencies:
-      '@typescript-eslint/types': 8.59.0
-      '@typescript-eslint/typescript-estree': 8.59.0(typescript@6.0.3)
-      '@typescript-eslint/utils': 8.59.0(eslint@10.2.1)(typescript@6.0.3)
+      '@typescript-eslint/types': 8.58.2
+      '@typescript-eslint/typescript-estree': 8.58.2(typescript@6.0.3)
+      '@typescript-eslint/utils': 8.58.2(eslint@10.2.1)(typescript@6.0.3)
      debug: 4.4.3
      eslint: 10.2.1
      ts-api-utils: 2.5.0(typescript@6.0.3)
@@ -4254,14 +4233,14 @@ snapshots:
    transitivePeerDependencies:
      - supports-color

-  '@typescript-eslint/types@8.59.0': {}
+  '@typescript-eslint/types@8.58.2': {}

-  '@typescript-eslint/typescript-estree@8.59.0(typescript@6.0.3)':
+  '@typescript-eslint/typescript-estree@8.58.2(typescript@6.0.3)':
    dependencies:
-      '@typescript-eslint/project-service': 8.59.0(typescript@6.0.3)
-      '@typescript-eslint/tsconfig-utils': 8.59.0(typescript@6.0.3)
-      '@typescript-eslint/types': 8.59.0
-      '@typescript-eslint/visitor-keys': 8.59.0
+      '@typescript-eslint/project-service': 8.58.2(typescript@6.0.3)
+      '@typescript-eslint/tsconfig-utils': 8.58.2(typescript@6.0.3)
+      '@typescript-eslint/types': 8.58.2
+      '@typescript-eslint/visitor-keys': 8.58.2
      debug: 4.4.3
      minimatch: 10.2.5
      semver: 7.7.4
@@ -4271,20 +4250,20 @@ snapshots:
    transitivePeerDependencies:
      - supports-color

-  '@typescript-eslint/utils@8.59.0(eslint@10.2.1)(typescript@6.0.3)':
+  '@typescript-eslint/utils@8.58.2(eslint@10.2.1)(typescript@6.0.3)':
    dependencies:
      '@eslint-community/eslint-utils': 4.9.1(eslint@10.2.1)
-      '@typescript-eslint/scope-manager': 8.59.0
-      '@typescript-eslint/types': 8.59.0
-      '@typescript-eslint/typescript-estree': 8.59.0(typescript@6.0.3)
+      '@typescript-eslint/scope-manager': 8.58.2
+      '@typescript-eslint/types': 8.58.2
+      '@typescript-eslint/typescript-estree': 8.58.2(typescript@6.0.3)
      eslint: 10.2.1
      typescript: 6.0.3
    transitivePeerDependencies:
      - supports-color

-  '@typescript-eslint/visitor-keys@8.59.0':
+  '@typescript-eslint/visitor-keys@8.58.2':
    dependencies:
-      '@typescript-eslint/types': 8.59.0
+      '@typescript-eslint/types': 8.58.2
      eslint-visitor-keys: 5.0.1

  acorn-jsx@5.3.2(acorn@8.16.0):
@@ -4417,9 +4396,9 @@ snapshots:
  browserslist@4.28.2:
    dependencies:
      baseline-browser-mapping: 2.10.20
-      caniuse-lite: 1.0.30001790
-      electron-to-chromium: 1.5.343
-      node-releases: 2.0.38
+      caniuse-lite: 1.0.30001788
+      electron-to-chromium: 1.5.340
+      node-releases: 2.0.37
      update-browserslist-db: 1.2.3(browserslist@4.28.2)

  buffer-alloc-unsafe@1.1.0: {}
@@ -4480,7 +4459,7 @@ snapshots:

  camelcase@2.1.1: {}

-  caniuse-lite@1.0.30001790: {}
+  caniuse-lite@1.0.30001788: {}

  caw@2.0.1:
    dependencies:
@@ -4782,7 +4761,7 @@ snapshots:

  duplexer3@0.1.5: {}

-  electron-to-chromium@1.5.343: {}
+  electron-to-chromium@1.5.340: {}

  emoji-regex@10.6.0: {}

@@ -5173,7 +5152,7 @@ snapshots:
  fs-extra@10.1.0:
    dependencies:
      graceful-fs: 4.2.11
-      jsonfile: 6.2.1
+      jsonfile: 6.2.0
      universalify: 2.0.1

  fs.realpath@1.0.0: {}
@@ -5265,8 +5244,6 @@ snapshots:
      merge2: 1.4.1
      slash: 3.0.0

-  globrex@0.1.2: {}
-
  gopd@1.2.0: {}

  got@7.1.0:
@@ -5544,7 +5521,7 @@ snapshots:

  json5@2.2.3: {}

-  jsonfile@6.2.1:
+  jsonfile@6.2.0:
    dependencies:
      universalify: 2.0.1
    optionalDependencies:
@@ -5754,7 +5731,7 @@ snapshots:
      css-select: 5.2.2
      he: 1.2.0

-  node-releases@2.0.38: {}
+  node-releases@2.0.37: {}

  normalize-package-data@2.5.0:
    dependencies:
@@ -6000,7 +5977,7 @@ snapshots:

  react-is@19.2.5: {}

-  react-router@7.14.2(react-dom@19.2.5(react@19.2.5))(react@19.2.5):
+  react-router@7.14.1(react-dom@19.2.5(react@19.2.5))(react@19.2.5):
    dependencies:
      cookie: 1.1.1
      react: 19.2.5
@@ -6400,10 +6377,6 @@ snapshots:
    dependencies:
      typescript: 6.0.3

-  tsconfck@3.1.6(typescript@6.0.3):
-    optionalDependencies:
-      typescript: 6.0.3
-
  tslib@2.8.1: {}

  tunnel-agent@0.6.0:
@@ -6426,12 +6399,12 @@ snapshots:
    dependencies:
      typescript: 6.0.3

-  typescript-eslint@8.59.0(eslint@10.2.1)(typescript@6.0.3):
+  typescript-eslint@8.58.2(eslint@10.2.1)(typescript@6.0.3):
    dependencies:
-      '@typescript-eslint/eslint-plugin': 8.59.0(@typescript-eslint/parser@8.59.0(eslint@10.2.1)(typescript@6.0.3))(eslint@10.2.1)(typescript@6.0.3)
-      '@typescript-eslint/parser': 8.59.0(eslint@10.2.1)(typescript@6.0.3)
-      '@typescript-eslint/typescript-estree': 8.59.0(typescript@6.0.3)
-      '@typescript-eslint/utils': 8.59.0(eslint@10.2.1)(typescript@6.0.3)
+      '@typescript-eslint/eslint-plugin': 8.58.2(@typescript-eslint/parser@8.58.2(eslint@10.2.1)(typescript@6.0.3))(eslint@10.2.1)(typescript@6.0.3)
+      '@typescript-eslint/parser': 8.58.2(eslint@10.2.1)(typescript@6.0.3)
+      '@typescript-eslint/typescript-estree': 8.58.2(typescript@6.0.3)
+      '@typescript-eslint/utils': 8.58.2(eslint@10.2.1)(typescript@6.0.3)
      eslint: 10.2.1
      typescript: 6.0.3
    transitivePeerDependencies:
@@ -6516,16 +6489,6 @@ snapshots:
      stack-trace: 1.0.0-pre2
      vite: 8.0.9(@types/node@25.6.0)(esbuild@0.27.4)(terser@5.46.1)

-  vite-tsconfig-paths@6.1.1(typescript@6.0.3)(vite@8.0.9(@types/node@25.6.0)(esbuild@0.27.4)(terser@5.46.1)):
-    dependencies:
-      debug: 4.4.3
-      globrex: 0.1.2
-      tsconfck: 3.1.6(typescript@6.0.3)
-      vite: 8.0.9(@types/node@25.6.0)(esbuild@0.27.4)(terser@5.46.1)
-    transitivePeerDependencies:
-      - supports-color
-      - typescript
-
  vite@8.0.9(@types/node@25.6.0)(esbuild@0.27.4)(terser@5.46.1):
    dependencies:
      lightningcss: 1.32.0
--- a/interface/src/SignIn.tsx
+++ b/interface/src/SignIn.tsx
@@ -18,7 +18,7 @@ import { PROJECT_NAME } from 'env';
 import { useI18nContext } from 'i18n/i18n-react';
 import type { SignInRequest } from 'types';
 import { onEnterCallback, updateValue } from 'utils';
-import { SIGN_IN_REQUEST_VALIDATOR, ValidationError, validate } from 'validators';
+import { SIGN_IN_REQUEST_VALIDATOR, validate } from 'validators';

 const SignIn = memo(() => {
  const authenticationContext = useContext(AuthenticationContext);
@@ -74,7 +74,7 @@ const SignIn = memo(() => {
      await validate(SIGN_IN_REQUEST_VALIDATOR, signInRequest);
      await signIn();
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
      setProcessing(false);
    }
  }, [signInRequest, signIn, LL]);
--- a/interface/src/app/main/CustomEntitiesDialog.tsx
+++ b/interface/src/app/main/CustomEntitiesDialog.tsx
@@ -28,7 +28,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { BlockFormControlLabel, ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';

 import { DeviceValueType, DeviceValueTypeNames, DeviceValueUOM_s } from './types';
 import type { EntityItem } from './types';
@@ -136,7 +136,7 @@ const CustomEntitiesDialog = ({
      }
      onSave(processedItem);
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [validator, editItem, onSave]);

@@ -215,7 +215,7 @@ const CustomEntitiesDialog = ({
                  name="value"
                  label={LL.DEFAULT(0) + ' ' + LL.VALUE(0)}
                  type="string"
-                  value={editItem.value}
+                  value={editItem.value as string}
                  variant="outlined"
                  onChange={updateFormValue}
                  fullWidth
@@ -260,7 +260,7 @@ const CustomEntitiesDialog = ({
                  margin="normal"
                  sx={{ width: '11ch' }}
                  type="string"
-                  value={editItem.device_id}
+                  value={editItem.device_id as string}
                  onChange={updateFormValue}
                  slotProps={{
                    input: {
@@ -280,7 +280,7 @@ const CustomEntitiesDialog = ({
                  margin="normal"
                  sx={{ width: '11ch' }}
                  type="string"
-                  value={editItem.type_id}
+                  value={editItem.type_id as string}
                  onChange={updateFormValue}
                  slotProps={{
                    input: {
@@ -381,7 +381,7 @@ const CustomEntitiesDialog = ({
                    fieldErrors={fieldErrors || {}}
                    name="factor"
                    label={LL.BITMASK()}
-                    value={editItem.factor}
+                    value={editItem.factor as string}
                    sx={{ width: '11ch' }}
                    variant="outlined"
                    onChange={updateFormValue}
--- a/interface/src/app/main/DevicesDialog.tsx
+++ b/interface/src/app/main/DevicesDialog.tsx
@@ -24,7 +24,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';

 import { DeviceValueUOM, DeviceValueUOM_s } from './types';
 import type { DeviceValue } from './types';
@@ -67,7 +67,7 @@ const DevicesDialog = ({
      await validate(validator, editItem);
      onSave(editItem);
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [validator, editItem, onSave]);

--- a/interface/src/app/main/SchedulerDialog.tsx
+++ b/interface/src/app/main/SchedulerDialog.tsx
@@ -26,7 +26,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { BlockFormControlLabel, ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';

 import { ScheduleFlag } from './types';
 import type { ScheduleItem } from './types';
@@ -120,7 +120,7 @@ const SchedulerDialog = ({
        await validate(validator, itemToSave);
        onSave(itemToSave);
      } catch (error) {
-        setFieldErrors((error as ValidationError).fieldErrors);
+        setFieldErrors(error as ValidateFieldsError);
      }
    },
    [validator, onSave]
--- a/interface/src/app/main/SensorsAnalogDialog.tsx
+++ b/interface/src/app/main/SensorsAnalogDialog.tsx
@@ -23,7 +23,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';

 import { AnalogType, AnalogTypeNames, DeviceValueUOM_s } from './types';
 import type { AnalogSensor } from './types';
@@ -172,7 +172,7 @@ const SensorsAnalogDialog = ({
      await validate(validator, editItem);
      onSave(editItem);
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [validator, editItem, onSave]);

--- a/interface/src/app/main/SensorsTemperatureDialog.tsx
+++ b/interface/src/app/main/SensorsTemperatureDialog.tsx
@@ -21,7 +21,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';

 import type { TemperatureSensor } from './types';

@@ -84,7 +84,7 @@ const SensorsTemperatureDialog = ({
      await validate(validator, editItem);
      onSave(editItem);
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [validator, editItem, onSave]);

--- a/interface/src/app/main/types.ts
+++ b/interface/src/app/main/types.ts
@@ -43,6 +43,16 @@ export interface Settings {
  modbus_port: number;
  modbus_max_clients: number;
  modbus_timeout: number;
+  email_enabled: boolean;
+  email_ssl?: boolean;
+  email_starttls?: boolean;
+  email_server: string;
+  email_port: number;
+  email_login: string;
+  email_pass: string;
+  email_sender: string;
+  email_recp: string;
+  email_subject: string;
  developer_mode: boolean;
 }

--- a/interface/src/app/settings/APSettings.tsx
+++ b/interface/src/app/settings/APSettings.tsx
@@ -21,7 +21,7 @@ import { useI18nContext } from 'i18n/i18n-react';
 import type { APSettingsType } from 'types';
 import { APProvisionMode } from 'types';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { ValidationError, createAPSettingsValidator, validate } from 'validators';
+import { createAPSettingsValidator, validate } from 'validators';

 export const isAPEnabled = ({ provision_mode }: APSettingsType) =>
  provision_mode === APProvisionMode.AP_MODE_ALWAYS ||
@@ -86,7 +86,7 @@ const APSettings = () => {
      await validate(createAPSettingsValidator(data), data);
      await saveData();
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [data, saveData]);

--- a/interface/src/app/settings/ApplicationSettings.tsx
+++ b/interface/src/app/settings/ApplicationSettings.tsx
@@ -28,12 +28,13 @@ import {
  FormLoader,
  MessageBox,
  SectionContent,
+  ValidatedPasswordField,
  ValidatedTextField,
  useLayoutTitle
 } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';

 import { API, getBoardProfile, readSettings, writeSettings } from '../../api/app';
 import { BOARD_PROFILES } from '../main/types';
@@ -153,7 +154,7 @@ const ApplicationSettings = () => {
      setFieldErrors(undefined);
      await validate(createSettingsValidator(data), data);
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    } finally {
      await saveData();
    }
@@ -351,6 +352,156 @@ const ApplicationSettings = () => {
            </Grid>
          </Grid>
        )}
+        <Typography color="secondary">eMail</Typography>
+        <BlockFormControlLabel
+          control={
+            <Checkbox
+              checked={data.email_enabled}
+              onChange={updateFormValue}
+              name="email_enabled"
+              disabled={!hardwareData.psram}
+            />
+          }
+          label={
+            <Typography color={!hardwareData.psram ? 'grey' : 'default'}>
+              Enable eMail notification
+              {!hardwareData.psram && (
+                <Typography variant="caption">
+                  &nbsp; &#40;{LL.IS_REQUIRED('PSRAM')}&#41;
+                </Typography>
+              )}
+            </Typography>
+          }
+        />
+        {data.email_enabled && (
+          <>
+            <Grid
+              container
+              spacing={2}
+              direction="row"
+              justifyContent="flex-start"
+              alignItems="flex-start"
+            >
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_server"
+                  label="SMTP Server"
+                  variant="outlined"
+                  value={data.email_server}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  sx={{ width: '12ch' }}
+                  name="email_port"
+                  variant="outlined"
+                  label="Port"
+                  value={numberValue(data.email_port)}
+                  type="number"
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid size={4} mt={!data.email_ssl && !data.email_starttls ? 0 : 3}>
+                {!data.email_starttls && (
+                  <BlockFormControlLabel
+                    sx={{ width: '12ch' }}
+                    control={
+                      <Checkbox
+                        checked={data.email_ssl}
+                        onChange={updateFormValue}
+                        name="email_ssl"
+                        disabled={
+                          data.email_starttls || data.email_ssl === undefined
+                        }
+                      />
+                    }
+                    label="SSL/TLS"
+                  />
+                )}
+                {!data.email_ssl && (
+                  <BlockFormControlLabel
+                    sx={{ width: '12ch' }}
+                    control={
+                      <Checkbox
+                        checked={data.email_starttls}
+                        onChange={updateFormValue}
+                        name="email_starttls"
+                        disabled={
+                          data.email_ssl || data.email_starttls === undefined
+                        }
+                      />
+                    }
+                    label="STARTTLS"
+                  />
+                )}
+              </Grid>
+            </Grid>
+            <Grid container spacing={2} rowSpacing={0}>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_login"
+                  label="Login"
+                  variant="outlined"
+                  value={data.email_login}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedPasswordField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_pass"
+                  label="Password"
+                  variant="outlined"
+                  value={data.email_pass}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+            </Grid>
+            <Grid container spacing={2} rowSpacing={0}>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_sender"
+                  label="From"
+                  variant="outlined"
+                  value={data.email_sender}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_recp"
+                  label="To"
+                  variant="outlined"
+                  value={data.email_recp}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_subject"
+                  label="Subject"
+                  variant="outlined"
+                  value={data.email_subject}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+            </Grid>
+          </>
+        )}
        <Typography sx={{ pb: 1, pt: 2 }} variant="h6" color="primary">
          {LL.SENSORS()}
        </Typography>
--- a/interface/src/app/settings/MqttSettings.tsx
+++ b/interface/src/app/settings/MqttSettings.tsx
@@ -31,7 +31,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { MqttSettingsType } from 'types';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { ValidationError, createMqttSettingsValidator, validate } from 'validators';
+import { createMqttSettingsValidator, validate } from 'validators';

 import { callAction } from '../../api/app';

@@ -94,7 +94,7 @@ const MqttSettings = () => {
      await validate(createMqttSettingsValidator(data), data);
      await saveData();
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [data, saveData]);

--- a/interface/src/app/settings/NTPSettings.tsx
+++ b/interface/src/app/settings/NTPSettings.tsx
@@ -36,7 +36,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { NTPSettingsType, Time } from 'types';
 import { formatLocalDateTime, updateValueDirty, useRest } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 import { NTP_SETTINGS_VALIDATOR } from 'validators/ntp';

 import { TIME_ZONES, selectedTimeZone, useTimeZoneSelectItems } from './TZ';
@@ -133,7 +133,7 @@ const NTPSettings = () => {
      await validate(NTP_SETTINGS_VALIDATOR, data);
      await saveData();
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [data, saveData]);

--- a/interface/src/app/settings/network/NetworkSettings.tsx
+++ b/interface/src/app/settings/network/NetworkSettings.tsx
@@ -40,7 +40,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { NetworkSettingsType } from 'types';
 import { updateValueDirty, useRest } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';
 import { createNetworkSettingsValidator } from 'validators/network';

 import SystemMonitor from '../../status/SystemMonitor';
@@ -116,7 +116,7 @@ const NetworkSettings = () => {
      await validate(createNetworkSettingsValidator(data), data);
      await saveData();
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
    deselectNetwork();
  }, [data, saveData, deselectNetwork]);
--- a/interface/src/app/settings/security/SecuritySettings.tsx
+++ b/interface/src/app/settings/security/SecuritySettings.tsx
@@ -19,7 +19,7 @@ import { AuthenticatedContext } from 'contexts/authentication';
 import { useI18nContext } from 'i18n/i18n-react';
 import type { SecuritySettingsType } from 'types';
 import { updateValueDirty, useRest } from 'utils';
-import { SECURITY_SETTINGS_VALIDATOR, ValidationError, validate } from 'validators';
+import { SECURITY_SETTINGS_VALIDATOR, validate } from 'validators';

 const SecuritySettings = () => {
  const { LL } = useI18nContext();
@@ -58,7 +58,7 @@ const SecuritySettings = () => {
      await saveData();
      await authenticatedContext.refresh();
    } catch (error) {
-      setFieldErrors((error as ValidationError).fieldErrors);
+      setFieldErrors(error as ValidateFieldsError);
    }
  }, [data, saveData, authenticatedContext]);

--- a/interface/src/app/settings/security/User.tsx
+++ b/interface/src/app/settings/security/User.tsx
@@ -24,7 +24,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { UserType } from 'types';
 import { updateValue } from 'utils';
-import { ValidationError, validate } from 'validators';
+import { validate } from 'validators';

 interface UserFormProps {
  creating: boolean;
@@ -69,7 +69,7 @@ const User: FC<UserFormProps> = ({
        await validate(validator, user);
        onDoneEditing();
      } catch (error) {
-        setFieldErrors((error as ValidationError).fieldErrors);
+        setFieldErrors(error as ValidateFieldsError);
      }
    }
  }, [user, validator, onDoneEditing]);
--- a/interface/src/app/status/Version.tsx
+++ b/interface/src/app/status/Version.tsx
@@ -315,22 +315,13 @@ const InstallDialog = memo(
              fetchDevVersion ? latestDevVersion?.name : latestVersion?.name
            )}
          </Typography>
+
+          {upgradeImportantMessageType === 1 && LL.UPGRADE_IMPORTANT_MESSAGES_1()}
          {upgradeImportantMessageType === 2 && LL.UPGRADE_IMPORTANT_MESSAGES_2()}
-          {upgradeImportantMessageType === 1 && (
-            <>
-              {LL.UPGRADE_IMPORTANT_MESSAGES_1()}
-              <Typography sx={{ mt: 2 }}>
-                <Link to="/settings/downloadUpload" style={{ color: 'lightblue' }}>
-                  {LL.DOWNLOAD_SYSTEM_BACKUP()}
-                </Link>
-              </Typography>
-            </>
-          )}
          <Typography sx={{ mt: 2 }}>
            <Link
-              to="https://docs.emsesp.org/FAQ#upgrading-the-firmware"
              target="_blank"
-              rel="noreferrer"
+              to="https://docs.emsesp.org/FAQ#upgrading-the-firmware"
              style={{ color: 'lightblue' }}
            >
              {LL.ONLINE_HELP()}
--- a/interface/src/i18n/de/index.ts
+++ b/interface/src/i18n/de/index.ts
@@ -187,7 +187,7 @@ const de: Translation = {
  COMPACT: 'Kompakte Darstellung',
  DOWNLOAD_SETTINGS_TEXT: 'Erstellen Sie eine Sicherung Ihrer Konfigurationen und Einstellungen',
  DOWNLOAD_SETTINGS_TEXT2: 'Exportiere alle Werte',
-  DOWNLOAD_SYSTEM_BACKUP: 'Systemsicherung',
+  DOWNLOAD_SYSTEM_BACKUP: 'System Sicherung',
  UPLOAD_TEXT: 'Laden Sie eine neue Firmware-Datei (.bin) oder eine Sicherungsdatei (.json) hoch',
  UPLOAD_DROP_TEXT: 'Legen Sie eine Firmware-Datei (.bin) ab oder klicken Sie hier',
  ERROR: 'Unerwarteter Fehler, bitte versuchen Sie es erneut.',
@@ -362,9 +362,9 @@ const de: Translation = {
  STORED_VERSIONS: 'Gespeicherte Versionen',
  ONLINE_HELP: 'Online-Hilfe',
  UPGRADE_IMPORTANT_MESSAGES: 'Wichtige Nachrichten aktualisieren',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Für diese Aktualisierung ist ein Werksreset erforderlich. Stellen Sie sicher, dass Sie zuerst eine Systemsicherung herunterladen, bevor Sie fortfahren, und laden Sie diese Datei dann nach der Installation der neuen Version hoch.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Diese Aktualisierung erfordert eine Werkseinstellung. Stellen Sie sicher, dass Sie zuerst eine Systemsicherung herunterladen, bevor Sie fortfahren, und laden Sie diese Datei dann nach der Installation der neuen Version hoch.',
  UPGRADE_IMPORTANT_MESSAGES_2: 'Sie aktualisieren auf eine neue Hauptversion. Stellen Sie sicher, dass Sie den ChangeLog für alle wichtigen Änderungen gelesen haben.',
-  WARNING_SYSTEM_BACKUP: 'Dies wird eine Sicherung Ihrer vollständigen Systemkonfiguration und Einstellungen erstellen. Alle Passwörter werden in dieser Sicherungsdatei lesbar sein. Seien Sie vorsichtig beim Teilen! Möchten Sie fortfahren?'
+  WARNING_SYSTEM_BACKUP: 'Dies wird eine Sicherung Ihrer vollständigen Systemkonfiguration und -einstellungen erstellen. Alle Passwörter werden im Sicherungsdatei lesbar sein. Seien Sie vorsichtig beim Teilen! Möchten Sie fortfahren?'

 };

--- a/interface/src/validators/shared.ts
+++ b/interface/src/validators/shared.ts
@@ -1,20 +1,6 @@
-import type {
-  InternalRuleItem,
-  ValidateFieldsError,
-  ValidateOption
-} from 'async-validator';
+import type { InternalRuleItem, ValidateOption } from 'async-validator';
 import type Schema from 'async-validator';

-export class ValidationError extends Error {
-  readonly fieldErrors: ValidateFieldsError;
-
-  constructor(fieldErrors: ValidateFieldsError) {
-    super('Validation failed');
-    this.name = 'ValidationError';
-    this.fieldErrors = fieldErrors;
-  }
-}
-
 export const validate = <T extends object>(
  validator: Schema,
  source: Partial<T>,
@@ -22,7 +8,7 @@ export const validate = <T extends object>(
 ): Promise<T> =>
  new Promise((resolve, reject) => {
    void validator.validate(source, options ?? {}, (errors, fieldErrors) => {
-      errors ? reject(new ValidationError(fieldErrors)) : resolve(source as T);
+      errors ? reject(fieldErrors as Error) : resolve(source as T);
    });
  });

--- a/lib/espMqttClient/src/Config.h
+++ b/lib/espMqttClient/src/Config.h
@@ -49,6 +49,10 @@ the LICENSE file.
 #define EMC_CLIENTID_LENGTH 23 + 1
 #endif

+#ifdef EMSESP_MQTT_STACKSIZE
+#define EMC_TASK_STACK_SIZE EMSESP_MQTT_STACKSIZE
+#endif
+
 #ifndef EMC_TASK_STACK_SIZE
 #define EMC_TASK_STACK_SIZE 5120
 #endif
@@ -66,14 +70,10 @@ the LICENSE file.
 #endif

 #if EMC_USE_MEMPOOL
-  #ifndef EMC_NUM_POOL_ELEMENTS
-    #define EMC_NUM_POOL_ELEMENTS 32
-  #endif
-  #ifndef EMC_SIZE_POOL_ELEMENTS
-    #define EMC_SIZE_POOL_ELEMENTS 128
-  #endif
+#ifndef EMC_NUM_POOL_ELEMENTS
+#define EMC_NUM_POOL_ELEMENTS 32
+#endif
+#ifndef EMC_SIZE_POOL_ELEMENTS
+#define EMC_SIZE_POOL_ELEMENTS 128
 #endif
-
-#ifndef  TASMOTA_SDK
-#define EMC_CLIENT_SECURE
 #endif
--- a/lib/espMqttClient/src/MqttClient.cpp
+++ b/lib/espMqttClient/src/MqttClient.cpp
@@ -62,7 +62,11 @@ MqttClient::MqttClient(espMqttClientTypes::UseInternalTask useInternalTask, uint
  _xSemaphore = xSemaphoreCreateMutex();
  EMC_SEMAPHORE_GIVE();  // release before first use
  if (_useInternalTask == espMqttClientTypes::UseInternalTask::YES) {
-    xTaskCreatePinnedToCore((TaskFunction_t)_loop, "mqttclient", EMC_TASK_STACK_SIZE, this, priority, &_taskHandle, core);
+    if (core > 1) {
+      xTaskCreate((TaskFunction_t)_loop, "mqttclient", EMC_TASK_STACK_SIZE, this, priority, &_taskHandle);
+    } else {
+      xTaskCreatePinnedToCore((TaskFunction_t)_loop, "mqttclient", EMC_TASK_STACK_SIZE, this, priority, &_taskHandle, core);
+    }
  }
 #else
  (void) useInternalTask;
@@ -70,6 +74,7 @@ MqttClient::MqttClient(espMqttClientTypes::UseInternalTask useInternalTask, uint
  (void) core;
 #endif
  _clientId = _generatedClientId;
+  _core = core;
 }

 MqttClient::~MqttClient() {
--- a/lib/espMqttClient/src/MqttClient.h
+++ b/lib/espMqttClient/src/MqttClient.h
@@ -69,7 +69,17 @@ class MqttClient {
  const char* getClientId() const;
  size_t queueSize();  // No const because of mutex
  void loop();
-
+  uint32_t stack() {
+#ifndef EMSESP_STANDALONE
+   return uxTaskGetStackHighWaterMark(_taskHandle);
+#else
+    return 0;
+#endif
+  }
+  uint8_t core() {
+   return  _core;
+  }
+    
 protected:
  explicit MqttClient(espMqttClientTypes::UseInternalTask useInternalTask, uint8_t priority = 1, uint8_t core = 1);
  espMqttClientTypes::UseInternalTask _useInternalTask;
@@ -98,6 +108,7 @@ class MqttClient {
  uint8_t _willQos;
  bool _willRetain;
  uint32_t _timeout;
+  uint8_t _core;

  // state is protected to allow state changes by the transport system, defined in child classes
  // eg. to allow AsyncTCP
--- a/lib/espMqttClient/src/Transport/ClientPosix.cpp
+++ b/lib/espMqttClient/src/Transport/ClientPosix.cpp
@@ -8,7 +8,7 @@ the LICENSE file.

 #include "ClientPosix.h"

-#if defined(__linux__)
+#if defined(__linux__) || defined(__APPLE__)

 namespace espMqttClientInternals {

--- a/lib/espMqttClient/src/Transport/ClientPosix.h
+++ b/lib/espMqttClient/src/Transport/ClientPosix.h
@@ -8,7 +8,7 @@ the LICENSE file.

 #pragma once

-#if defined(__linux__)
+#if defined(__linux__) || defined(__APPLE__)

 #include <stdio.h>
 #include <stdlib.h>
--- a/lib/espMqttClient/src/Transport/ClientSecureSync.cpp
+++ b/lib/espMqttClient/src/Transport/ClientSecureSync.cpp
@@ -6,66 +6,65 @@ For a copy, see <https://opensource.org/licenses/MIT> or
 the LICENSE file.
 */

-#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
+#ifndef NO_TLS_SUPPORT

 #include "ClientSecureSync.h"
-#include <lwip/sockets.h>  // socket options
+#include <lwip/sockets.h>
+#include "../Config.h"

 namespace espMqttClientInternals {

 ClientSecureSync::ClientSecureSync()
-: client() {
-  // empty
+    : client() {
+    client.setClient(&basic_client, true);
+    client.setBufferSizes(EMC_RX_BUFFER_SIZE, EMC_TX_BUFFER_SIZE);
+    client.setSessionTimeout(120); // Set the timeout in seconds (>=120 seconds)
+}
+
+ClientSecureSync::~ClientSecureSync() {
+    stop();
 }

 bool ClientSecureSync::connect(IPAddress ip, uint16_t port) {
-  bool ret = client.connect(ip, port);  // implicit conversion of return code int --> bool
-  if (ret) {
-    #if defined(ARDUINO_ARCH_ESP8266)
-    client.setNoDelay(true);
-    #elif defined(ARDUINO_ARCH_ESP32)
-    // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure
-    int val = true;
-    client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
-    #endif
-  }
-  return ret;
+    bool ret = client.connect(ip, port); // implicit conversion of return code int --> bool
+    if (ret) {
+        // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure
+        int val = true;
+        basic_client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
+    }
+    return ret;
 }

-bool ClientSecureSync::connect(const char* host, uint16_t port) {
-  bool ret = client.connect(host, port);  // implicit conversion of return code int --> bool
-  if (ret) {
-    #if defined(ARDUINO_ARCH_ESP8266)
-    client.setNoDelay(true);
-    #elif defined(ARDUINO_ARCH_ESP32)
-    // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure
-    int val = true;
-    client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
-    #endif
-  }
-  return ret;
+bool ClientSecureSync::connect(const char * host, uint16_t port) {
+    bool ret = client.connect(host, port); // implicit conversion of return code int --> bool
+    if (ret) {
+        // Set TCP option directly to bypass lack of working setNoDelay for WiFiClientSecure
+        int val = true;
+        basic_client.setSocketOption(IPPROTO_TCP, TCP_NODELAY, &val, sizeof(int));
+    }
+    return ret;
 }

-size_t ClientSecureSync::write(const uint8_t* buf, size_t size) {
-  return client.write(buf, size);
+size_t ClientSecureSync::write(const uint8_t * buf, size_t size) {
+    return client.write(buf, size);
 }

-int ClientSecureSync::read(uint8_t* buf, size_t size) {
-  return client.read(buf, size);
+int ClientSecureSync::read(uint8_t * buf, size_t size) {
+    return client.read(buf, size);
 }

 void ClientSecureSync::stop() {
-  client.stop();
+    client.stop();
 }

 bool ClientSecureSync::connected() {
-  return client.connected();
+    return client.connected();
 }

 bool ClientSecureSync::disconnected() {
-  return !client.connected();
+    return !client.connected();
 }

-}  // namespace espMqttClientInternals
+} // namespace espMqttClientInternals

-#endif
+#endif
--- a/lib/espMqttClient/src/Transport/ClientSecureSync.h
+++ b/lib/espMqttClient/src/Transport/ClientSecureSync.h
@@ -8,15 +8,11 @@ the LICENSE file.

 #pragma once

-#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
+#ifndef NO_TLS_SUPPORT

-// Added for EMS-ESP
-#include "../Config.h"
-#if defined(EMC_CLIENT_SECURE)
-#include <WiFiClientSecure.h> // includes IPAddress
-#else
+// #include "esp_tls.h"
 #include <WiFiClient.h>
-#endif
+#include <ESP_SSLClient.h>
 #include "Transport.h"

 namespace espMqttClientInternals {
@@ -24,6 +20,7 @@ namespace espMqttClientInternals {
 class ClientSecureSync : public Transport {
  public:
    ClientSecureSync();
+    ~ClientSecureSync();
    bool   connect(IPAddress ip, uint16_t port) override;
    bool   connect(const char * host, uint16_t port) override;
    size_t write(const uint8_t * buf, size_t size) override;
@@ -31,14 +28,11 @@ class ClientSecureSync : public Transport {
    void   stop() override;
    bool   connected() override;
    bool   disconnected() override;
-    // added for EMS-ESP
-#if defined(EMC_CLIENT_SECURE)
-    WiFiClientSecure client;
-#else
-    WiFiClient client;
-#endif
+
+    WiFiClient    basic_client;
+    ESP_SSLClient client;
 };

 } // namespace espMqttClientInternals

-#endif
+#endif
--- a/lib/espMqttClient/src/espMqttClient.cpp
+++ b/lib/espMqttClient/src/espMqttClient.cpp
@@ -8,50 +8,6 @@ the LICENSE file.

 #include "espMqttClient.h"

-#if defined(ARDUINO_ARCH_ESP8266)
-espMqttClient::espMqttClient()
-    : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO)
-    , _client() {
-    _transport = &_client;
-}
-
-espMqttClientSecure::espMqttClientSecure()
-    : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO)
-    , _client() {
-    _transport = &_client;
-}
-
-espMqttClientSecure & espMqttClientSecure::setInsecure() {
-    _client.client.setInsecure();
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setFingerprint(const uint8_t fingerprint[20]) {
-    _client.client.setFingerprint(fingerprint);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setTrustAnchors(const X509List * ta) {
-    _client.client.setTrustAnchors(ta);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setClientRSACert(const X509List * cert, const PrivateKey * sk) {
-    _client.client.setClientRSACert(cert, sk);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setClientECCert(const X509List * cert, const PrivateKey * sk, unsigned allowed_usages, unsigned cert_issuer_key_type) {
-    _client.client.setClientECCert(cert, sk, allowed_usages, cert_issuer_key_type);
-    return *this;
-}
-
-espMqttClientSecure & espMqttClientSecure::setCertStore(CertStoreBase * certStore) {
-    _client.client.setCertStore(certStore);
-    return *this;
-}
-#endif
-
 #if defined(ARDUINO_ARCH_ESP32)
 espMqttClient::espMqttClient(espMqttClientTypes::UseInternalTask useInternalTask)
    : MqttClientSetup(useInternalTask)
@@ -78,51 +34,45 @@ espMqttClientSecure::espMqttClientSecure(uint8_t priority, uint8_t core)
 }

 espMqttClientSecure & espMqttClientSecure::setInsecure() {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
    _client.client.setInsecure();
 #endif
    return *this;
 }

 espMqttClientSecure & espMqttClientSecure::setCACert(const char * rootCA) {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
    _client.client.setCACert(rootCA);
 #endif
    return *this;
 }

 espMqttClientSecure & espMqttClientSecure::setCertificate(const char * clientCa) {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
    _client.client.setCertificate(clientCa);
 #endif
    return *this;
 }

 espMqttClientSecure & espMqttClientSecure::setPrivateKey(const char * privateKey) {
-#if defined(EMC_CLIENT_SECURE)
+#ifndef NO_TLS_SUPPORT
    _client.client.setPrivateKey(privateKey);
 #endif
    return *this;
 }

 espMqttClientSecure & espMqttClientSecure::setPreSharedKey(const char * pskIdent, const char * psKey) {
-#if defined(EMC_CLIENT_SECURE)
-    _client.client.setPreSharedKey(pskIdent, psKey);
+#ifndef NO_TLS_SUPPORT
 #endif
    return *this;
 }

 #endif

-#if defined(__linux__)
+#if defined(__linux__) || defined(__APPLE__)
 espMqttClient::espMqttClient()
    : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO)
    , _client() {
    _transport = &_client;
 }
-#elif defined(_WIN32) || defined(__APPLE__)
-// Windows
-espMqttClient::espMqttClient()
-    : MqttClientSetup(espMqttClientTypes::UseInternalTask::NO) {
-}
 #endif
--- a/lib/espMqttClient/src/espMqttClient.h
+++ b/lib/espMqttClient/src/espMqttClient.h
@@ -14,7 +14,7 @@ the LICENSE file.
 #if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
 #include "Transport/ClientSync.h"
 #include "Transport/ClientSecureSync.h"
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__APPLE__)
 #include "Transport/ClientPosix.h"
 #endif

@@ -65,10 +65,16 @@ class espMqttClientSecure : public MqttClientSetup<espMqttClientSecure> {
    espMqttClientSecure & setPreSharedKey(const char * pskIdent, const char * psKey);

  protected:
+#ifndef NO_TLS_SUPPORT
    espMqttClientInternals::ClientSecureSync _client;
+#else
+    espMqttClientInternals::ClientSync _client;
+#endif
 };

-#elif defined(__linux__)
+#endif
+
+#if defined(__linux__) || defined(__APPLE__)
 class espMqttClient : public MqttClientSetup<espMqttClient> {
  public:
    espMqttClient();
@@ -76,10 +82,4 @@ class espMqttClient : public MqttClientSetup<espMqttClient> {
  protected:
    espMqttClientInternals::ClientPosix _client;
 };
-#elif defined(_WIN32) || defined(__APPLE__)
-class espMqttClient : public MqttClientSetup<espMqttClient> {
-  public:
-    espMqttClient();
-};
-
 #endif
--- a/mock-api/package.json
+++ b/mock-api/package.json
@@ -15,5 +15,5 @@
    "itty-router": "^5.0.23",
    "prettier": "^3.8.3"
  },
-  "packageManager": "pnpm@10.33.1+sha512.05ba3c1d5d1c18f68df06470d74055e62d41fc110a0c660db1b2dfb2785327f04cf0f68345d4609bc52089e7fa0343c31593b2f9594e2c5d5da426230acc9820"
+  "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319"
 }
--- a/platformio.ini
+++ b/platformio.ini
@@ -21,7 +21,7 @@ extra_configs =
  pio_local.ini

 [common]
-core_build_flags = -std=gnu++2a -O3 -flto=auto -Wno-type-limits -Wall -Wextra -Wno-unused-parameter -Wno-unused-variable -Wno-format -Wno-missing-field-initializers
+core_build_flags = -std=gnu++20 -O3 -flto=auto -Wno-type-limits -Wall -Wextra -Wno-unused-parameter -Wno-unused-variable -Wno-format -Wno-missing-field-initializers
 core_unbuild_flags = -std=gnu++11 -std=gnu++14 -std=gnu++17 -fno-lto

 my_build_flags =
@@ -53,13 +53,21 @@ build_flags =
 unbuild_flags =
  ${common.core_unbuild_flags}

+; 4MB Flash variants
+[espressif32_base_4M]
+framework = arduino
+board_build.partitions = partitions/esp32_partition_4M.csv
+board_upload.flash_size = 4MB
+board_build.app_partition_name = app0
+platform = https://github.com/tasmota/platform-espressif32/releases/download/2026.04.50/platform-espressif32.zip ; Platform 2026.04.50 Tasmota Arduino Core 3.3.8 based on IDF 5.5.4.260407
+
 ; 16MB Flash variants
 [espressif32_base_16M]
 framework = arduino
 board_build.partitions = partitions/esp32_partition_16M.csv
 board_upload.flash_size = 16MB
 board_build.app_partition_name = app0
-platform = espressif32@6.13.0 ; Arduino Core 2.0.17 / IDF 4.4.7
+platform = https://github.com/tasmota/platform-espressif32/releases/download/2026.04.50/platform-espressif32.zip ; Platform 2026.04.50 Tasmota Arduino Core 3.3.8 based on IDF 5.5.4.260407

 ; 32MB Flash variants
 [espressif32_base_32M]
@@ -67,29 +75,7 @@ framework = arduino
 board_build.partitions = partitions/esp32_partition_32M.csv
 board_upload.flash_size = 32MB
 board_build.app_partition_name = app0
-platform = espressif32@6.13.0 ; Arduino Core 2.0.17 / IDF 4.4.7
-
-; use Tasmota's library for 4MB Flash variants.
-; Removes libs (like mbedtsl, so no WiFi_secure.h) to increase available heap
-[espressif32_base_T_4M]
-framework = arduino
-board_build.partitions = partitions/esp32_partition_4M.csv
-board_upload.flash_size = 4MB
-board_build.app_partition_name = app0
-platform = https://github.com/tasmota/platform-espressif32/releases/download/2024.06.00/platform-espressif32.zip  ; Arduino Core 2.0.18 with IPv6 support, based on IDF 4.4.8
-; Tasmota Arduino Core 3.1.3.250302 based on IDF 5.3.2.250228
-; platform = https://github.com/tasmota/platform-espressif32/releases/download/2025.03.30/platform-espressif32.zip
-
-; use Tasmota's library for 16MB Flash variants.
-; Removes libs (like mbedtsl, so no WiFi_secure.h) to increase available heap
-[espressif32_base_T_16M]
-framework = arduino
-board_build.partitions = partitions/esp32_partition_16M.csv
-board_upload.flash_size = 16MB
-board_build.app_partition_name = app0
-platform = https://github.com/tasmota/platform-espressif32/releases/download/2024.06.00/platform-espressif32.zip ; Arduino Core 2.0.18 with IPv6 support, based on IDF 4.4.8
-; Tasmota Arduino Core 3.1.3.250302 based on IDF 5.3.2.250228
-; platform = https://github.com/tasmota/platform-espressif32/releases/download/2025.03.30/platform-espressif32.zip
+platform = https://github.com/tasmota/platform-espressif32/releases/download/2026.04.50/platform-espressif32.zip ; Platform 2026.04.50 Tasmota Arduino Core 3.3.8 based on IDF 5.5.4.260407

 [env]
 build_flags =
@@ -106,6 +92,8 @@ lib_deps =
  bblanchon/ArduinoJson @ 7.4.3
  ESP32Async/AsyncTCP @ 3.4.10
  ESP32Async/ESPAsyncWebServer @ 3.10.3
+  https://github.com/mobizt/ReadyMail.git @ 0.3.8
+  https://github.com/mobizt/ESP_SSLClient.git @ 3.1.3
  ; https://github.com/emsesp/EMS-ESP-Modules.git @ 1.0.8

 ; builds the web interface only, not the firmware
@@ -118,18 +106,17 @@ build_src_filter = -<*>

 ;
 ; Builds for different board types
-; We use Tasmota for boards without PSRAM as this framework has mbedtls removed to save memory.
 ; If you're building for a single target environment, we recommend creating a pio_local.ini (see example file)
 ;

 [env:s_4M]
-; 4MB ESP32 - no SSL, no PSRAM - like a BBQKees older S32 and E32 models - uses Tasmota
-extends = espressif32_base_T_4M
+; 4MB ESP32 - no SSL, no PSRAM - like a BBQKees older S32 and E32 models
+extends = espressif32_base_4M
 board = s_4M

 [env:s_16M]
-; 16MB ESP32 - no PSRAM - like a BBQKees later S32 V2 models - uses Tasmota
-extends = espressif32_base_T_16M
+; 16MB ESP32 - no PSRAM - like a BBQKees later S32 V2 models
+extends = espressif32_base_16M
 board = s_16M

 [env:s_16M_P]
@@ -148,24 +135,30 @@ extends = espressif32_base_32M
 board = s3_32M_P

 [env:s2_4M_P]
-; based on lolin_s2_mini 4MB with 2MB PSRAM - uses Tasmota
-extends = espressif32_base_T_4M
+; based on lolin_s2_mini 4MB with 2MB PSRAM
+extends = espressif32_base_4M
 board = s2_4M_P

 [env:c3_mini_4M]
-; based on lolin_c3_mini 4MB, no PSRAM - uses Tasmota
-extends = espressif32_base_T_4M
+; based on lolin_c3_mini 4MB, no PSRAM
+extends = espressif32_base_4M
 board = c3_mini_4M

 ; lolin C3 mini v1 needs special wifi initialization
 ; https://www.wemos.cc/en/latest/c3/c3_mini_1_0_0.html#about-wifi
 [env:c3_miniv1_4M]
-extends = espressif32_base_T_4M
+extends = espressif32_base_4M
 board = c3_mini_4M
 build_flags =
  ${common.build_flags}
  -DBOARD_C3_MINI_V1

+; XIAO ESP32C - 512KB SRAM & 4MB Flash - https://wiki.seeedstudio.com/xiao_esp32c6_getting_started/
+[env:c6_xiao_4M]
+extends = espressif32_base_4M
+board_build.app_partition_name = app0
+board = seeed_xiao_esp32c6
+
 ; foundation for building and testing natively, standalone without an ESP32
 ; use the `standalone` environment instead of `native` for testing
 [env:native]
@@ -175,7 +168,8 @@ build_flags =
 build_src_flags =
  -DEMSESP_STANDALONE -DEMSESP_TEST
  -DARDUINOJSON_ENABLE_ARDUINO_STRING=1
-  -std=gnu++2a -Og -ggdb
+  -DNO_TLS_SUPPORT
+  -std=gnu++20 -Og -ggdb
  -Wall -Wextra
  -Wno-unused-parameter -Wno-sign-compare -Wno-missing-braces
  -Wno-vla-cxx-extension -Wno-tautological-constant-out-of-range-compare
@@ -184,6 +178,7 @@ build_src_flags =
  -I./lib/uuid-common/src
  -I./lib/uuid-console/src
  -I./lib/uuid-log/src
+  -I./lib/semver
  -I./lib/PButton
  -I./lib/espMqttClient/src
  -I./lib/espMqttClient/src/Transport
@@ -213,8 +208,9 @@ build_src_flags =
  -DEMSESP_STANDALONE -DEMSESP_TEST
  -DEMSESP_UNITY
  -DARDUINOJSON_ENABLE_ARDUINO_STRING=1
+  -DNO_TLS_SUPPORT
  -DEMSESP_DEFAULT_LOCALE=\"en\" -DEMSESP_DEFAULT_BOARD_PROFILE=\"S32\"
-  -std=gnu++2a -Og -ggdb
+  -std=gnu++20 -Og -ggdb
  -Wall -Wextra
  -Wno-unused-parameter -Wno-sign-compare -Wno-missing-braces
  -Wno-vla-cxx-extension -Wno-tautological-constant-out-of-range-compare
@@ -223,6 +219,7 @@ build_src_flags =
  -I./lib/uuid-common/src
  -I./lib/uuid-console/src
  -I./lib/uuid-log/src
+  -I./lib/semver
  -I./lib/PButton
  -I./lib/espMqttClient/src
  -I./lib/espMqttClient/src/Transport
--- a/src/ESP32React/APSettingsService.cpp
+++ b/src/ESP32React/APSettingsService.cpp
@@ -10,7 +10,6 @@ APSettingsService::APSettingsService(AsyncWebServer * server, FS * fs, SecurityM
    , _reconfigureAp(false)
    , _connected(0) {
    addUpdateHandler([this] { reconfigureAP(); }, false);
-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event); });
 }

 void APSettingsService::begin() {
@@ -19,39 +18,27 @@ void APSettingsService::begin() {
    // reconfigureAP();
 }

-// wait 10 sec on STA disconnect before starting AP
-void APSettingsService::WiFiEvent(WiFiEvent_t event) {
-    const uint8_t was_connected = _connected;
-    switch (event) {
-    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-        _connected &= ~1U;
-        break;
-    case ARDUINO_EVENT_ETH_DISCONNECTED:
-        _connected &= ~2U;
-        break;
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
-        _connected |= 1U;
-        break;
-    case ARDUINO_EVENT_ETH_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP6:
-        _connected |= 2U;
-        break;
-    default:
-        return;
-    }
-    // wait 10 sec before starting AP
-    if (was_connected && !_connected) {
-        _lastManaged = uuid::get_uptime();
-    }
-}
-
 void APSettingsService::reconfigureAP() {
    _lastManaged   = uuid::get_uptime() - MANAGE_NETWORK_DELAY;
    _reconfigureAp = true;
 }

 void APSettingsService::loop() {
+    const uint8_t was_connected = _connected;
+    if (WiFi.isConnected()) {
+        _connected |= 1U;
+    } else {
+        _connected &= ~1U;
+    }
+    if (ETH.connected()) {
+        _connected |= 2U;
+    } else {
+        _connected &= ~2U;
+    }
+    // wait 10 sec before starting AP
+    if (was_connected && !_connected) {
+        _lastManaged = uuid::get_uptime();
+    }
    const unsigned long currentMillis = uuid::get_uptime();
    if ((currentMillis - _lastManaged) >= MANAGE_NETWORK_DELAY) {
        _lastManaged = currentMillis;
@@ -76,11 +63,7 @@ void APSettingsService::manageAP() {
 }

 void APSettingsService::startAP() {
-#if ESP_IDF_VERSION_MAJOR < 5
-    WiFi.softAPenableIpV6(); // force IPV6, same as for WiFi - fixes https://github.com/emsesp/EMS-ESP32/issues/1922
-#else
    WiFi.softAPenableIPv6(); // force IPV6, same as for WiFi - fixes https://github.com/emsesp/EMS-ESP32/issues/1922
-#endif
    WiFi.softAPConfig(_state.localIP, _state.gatewayIP, _state.subnetMask);
    esp_wifi_set_bandwidth(static_cast<wifi_interface_t>(ESP_IF_WIFI_AP), WIFI_BW_HT20);
    WiFi.softAP(_state.ssid.c_str(), _state.password.c_str(), _state.channel, _state.ssidHidden, _state.maxClients);
--- a/src/ESP32React/APSettingsService.h
+++ b/src/ESP32React/APSettingsService.h
@@ -104,7 +104,6 @@ class APSettingsService : public StatefulService<APSettings> {
    void startAP();
    void stopAP();
    void handleDNS();
-    void WiFiEvent(WiFiEvent_t event);
 };

 #endif
--- a/src/ESP32React/ArduinoJsonJWT.cpp
+++ b/src/ESP32React/ArduinoJsonJWT.cpp
@@ -70,12 +70,16 @@ void ArduinoJsonJWT::parseJWT(String jwt, JsonDocument & jsonDocument) {
 */
 String ArduinoJsonJWT::sign(String & payload) {
    std::array<unsigned char, 32> hmacResult{};
-    mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256),
-                    reinterpret_cast<const unsigned char *>(_secret.c_str()),
-                    _secret.length(),
-                    reinterpret_cast<const unsigned char *>(payload.c_str()),
-                    payload.length(),
-                    hmacResult.data());
+    {
+        mbedtls_md_context_t ctx;
+        mbedtls_md_type_t    md_type = MBEDTLS_MD_SHA256;
+        mbedtls_md_init(&ctx);
+        mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(md_type), 1);
+        mbedtls_md_hmac_starts(&ctx, reinterpret_cast<const unsigned char *>(_secret.c_str()), _secret.length());
+        mbedtls_md_hmac_update(&ctx, reinterpret_cast<const unsigned char *>(payload.c_str()), payload.length());
+        mbedtls_md_hmac_finish(&ctx, hmacResult.data());
+        mbedtls_md_free(&ctx);
+    }
    return encode(reinterpret_cast<const char *>(hmacResult.data()), hmacResult.size());
 }

--- a/src/ESP32React/ESP32React.cpp
+++ b/src/ESP32React/ESP32React.cpp
@@ -6,7 +6,7 @@

 static constexpr const char CACHE_CONTROL[] = "public,max-age=60";

-// Single static-content handler serving all assets embedded in WWWData.h.
+// Single static-content handler serving all assets embedded in WWWData.h
 class StaticContentHandler : public AsyncWebHandler {
  public:
    bool canHandle(AsyncWebServerRequest * request) const override {
@@ -15,8 +15,7 @@ class StaticContentHandler : public AsyncWebHandler {
    }

    void handleRequest(AsyncWebServerRequest * request) override {
-        // OPTIONS is handled generically - the server-level CORS headers are
-        // attached via DefaultHeaders in ESP32React::begin().
+        // OPTIONS is handled generically - the server-level CORS headers are attached via DefaultHeaders in ESP32React::begin().
        if (request->method() == HTTP_OPTIONS) {
            request->send(200);
            return;
@@ -57,8 +56,7 @@ class StaticContentHandler : public AsyncWebHandler {
    }

    // Returns the /index.html asset, used as the SPA fallback for any GET
-    // that didn't match an embedded asset (React Router handles routing on
-    // the client side).
+    // that didn't match an embedded asset (React Router handles routing on the client side).
    static const WWWAsset * index_asset() {
        static const WWWAsset * cached = nullptr;
        if (cached == nullptr) {
@@ -106,4 +104,5 @@ void ESP32React::loop() {
    _networkSettingsService.loop();
    _apSettingsService.loop();
    _mqttSettingsService.loop();
-}
+    _ntpSettingsService.loop();
+}
--- a/src/ESP32React/MqttSettingsService.cpp
+++ b/src/ESP32React/MqttSettingsService.cpp
@@ -9,7 +9,6 @@ MqttSettingsService::MqttSettingsService(AsyncWebServer * server, FS * fs, Secur
    , _disconnectedAt(0)
    , _disconnectReason(espMqttClientTypes::DisconnectReason::TCP_DISCONNECTED)
    , _mqttClient(nullptr) {
-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event); });
    addUpdateHandler([this] { onConfigUpdated(); }, false);
 }

@@ -29,6 +28,7 @@ MqttSettingsService::~MqttSettingsService() {
 void MqttSettingsService::begin() {
    _fsPersistence.readFromFS();
    startClient();
+    _reconfigureMqtt = true;
 }

 void MqttSettingsService::startClient() {
@@ -41,7 +41,7 @@ void MqttSettingsService::startClient() {
        delete _mqttClient;
        _mqttClient = nullptr;
    }
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
    if (_state.enableTLS) {
        isSecure = true;
        if (emsesp::EMSESP::system_.PSram() == 0) {
@@ -79,6 +79,10 @@ void MqttSettingsService::startClient() {
 }

 void MqttSettingsService::loop() {
+    if (_state.enabled && _mqttClient && _mqttClient->connected() && !emsesp::EMSESP::system_.network_connected()) {
+        // emsesp::EMSESP::logger().info("Network connection dropped, stopping MQTT client");
+        _mqttClient->disconnect(true);
+    }
    if (_reconfigureMqtt || (_disconnectedAt && static_cast<uint32_t>(uuid::get_uptime() - _disconnectedAt) >= MQTT_RECONNECTION_DELAY)) {
        // reconfigure MQTT client
        _disconnectedAt  = configureMqtt() ? 0 : uuid::get_uptime();
@@ -142,28 +146,6 @@ void MqttSettingsService::onConfigUpdated() {
    emsesp::EMSESP::mqtt_.start(); // reload EMS-ESP MQTT settings
 }

-void MqttSettingsService::WiFiEvent(WiFiEvent_t event) {
-    switch (event) {
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP6:
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
-        if (_state.enabled && !_mqttClient->connected()) {
-            onConfigUpdated();
-        }
-        break;
-    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-    case ARDUINO_EVENT_ETH_DISCONNECTED:
-        if (_state.enabled) {
-            _mqttClient->disconnect(true);
-        }
-        break;
-
-    default:
-        break;
-    }
-}
-
 bool MqttSettingsService::configureMqtt() {
    // disconnect if already connected
    if (_mqttClient->connected()) {
@@ -182,7 +164,7 @@ bool MqttSettingsService::configureMqtt() {
        }

        _reconfigureMqtt = false;
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
        if (_state.enableTLS) {
            if (_state.rootCA == "insecure") {
                emsesp::EMSESP::logger().debug("Start insecure MQTT");
@@ -219,7 +201,7 @@ bool MqttSettingsService::configureMqtt() {
 }

 void MqttSettings::read(MqttSettings & settings, JsonObject root) {
-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
    root["enableTLS"] = settings.enableTLS;
    root["rootCA"]    = settings.rootCA;
 #endif
@@ -258,7 +240,7 @@ StateUpdateResult MqttSettings::update(JsonObject root, MqttSettings & settings)
    MqttSettings newSettings;
    bool         changed = false;

-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
    newSettings.enableTLS = root["enableTLS"];
    newSettings.rootCA    = root["rootCA"] | "";
 #else
@@ -389,7 +371,7 @@ StateUpdateResult MqttSettings::update(JsonObject root, MqttSettings & settings)
        emsesp::EMSESP::mqtt_.set_publish_time_heartbeat(newSettings.publish_time_heartbeat);
    }

-#ifndef TASMOTA_SDK
+#ifndef NO_TLS_SUPPORT
    // strip down to certificate only
    newSettings.rootCA.replace("\r", "");
    newSettings.rootCA.replace("\n", "");
--- a/src/ESP32React/MqttSettingsService.h
+++ b/src/ESP32React/MqttSettingsService.h
@@ -134,7 +134,6 @@ class MqttSettingsService : public StatefulService<MqttSettings> {
    // the MQTT client instance
    MqttClient * _mqttClient;

-    void WiFiEvent(WiFiEvent_t event);
    void onMqttConnect(bool sessionPresent);
    void onMqttDisconnect(espMqttClientTypes::DisconnectReason reason);
    void
--- a/src/ESP32React/NTPSettingsService.cpp
+++ b/src/ESP32React/NTPSettingsService.cpp
@@ -11,36 +11,17 @@ NTPSettingsService::NTPSettingsService(AsyncWebServer * server, FS * fs, Securit
        configureTime(request, json);
    });

-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event); });
    addUpdateHandler([this] { configureNTP(); }, false);
 }

 void NTPSettingsService::begin() {
    _fsPersistence.readFromFS();
-    configureNTP();
 }

-// handles both WiFI and Ethernet
-void NTPSettingsService::WiFiEvent(WiFiEvent_t event) {
-    switch (event) {
-    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-    case ARDUINO_EVENT_ETH_DISCONNECTED:
-        if (_connected && emsesp::EMSESP::system_.ntp_connected()) {
-            emsesp::EMSESP::logger().info("WiFi connection dropped, stopping NTP");
-            _connected = false;
-            configureNTP();
-        }
-        break;
-
-    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
-    case ARDUINO_EVENT_ETH_GOT_IP:
-        // emsesp::EMSESP::logger().info("Got IP address, starting NTP synchronization");
-        _connected = true;
+void NTPSettingsService::loop() {
+    if (_connected != emsesp::EMSESP::system_.network_connected()) {
+        _connected = emsesp::EMSESP::system_.network_connected();
        configureNTP();
-        break;
-
-    default:
-        break;
    }
 }

@@ -55,7 +36,9 @@ void NTPSettingsService::configureNTP() {
    } else {
        setenv("TZ", _state.tzFormat.c_str(), 1);
        tzset();
-        esp_sntp_stop();
+        if (esp_sntp_enabled()) {
+            esp_sntp_stop();
+        }
    }
 }

@@ -68,7 +51,12 @@ void NTPSettingsService::configureTime(AsyncWebServerRequest * request, JsonVari
            tm.tm_isdst         = -1; // not set by strptime, tells mktime to determine daylightsaving
            time_t         time = mktime(&tm);
            struct timeval now  = {.tv_sec = time, .tv_usec = {}};
+#if CONFIG_IDF_TARGET_ESP32C3
+            // settimeofday and adjtime() does not work, unknown how to set time
+            emsesp::EMSESP::logger().warning("manual clock setting not possible");
+#else
            settimeofday(&now, nullptr);
+#endif
            AsyncWebServerResponse * response = request->beginResponse(200);
            request->send(response);
            return;
--- a/src/ESP32React/NTPSettingsService.h
+++ b/src/ESP32React/NTPSettingsService.h
@@ -44,6 +44,7 @@ class NTPSettingsService : public StatefulService<NTPSettings> {
    NTPSettingsService(AsyncWebServer * server, FS * fs, SecurityManager * securityManager);

    void        begin();
+    void        loop();
    static void ntp_received(struct timeval * tv);

  private:
@@ -51,7 +52,6 @@ class NTPSettingsService : public StatefulService<NTPSettings> {
    FSPersistence<NTPSettings> _fsPersistence;
    volatile bool              _connected;

-    void WiFiEvent(WiFiEvent_t event);
    void configureNTP();
    void configureTime(AsyncWebServerRequest * request, JsonVariant json);
 };
--- a/src/ESP32React/NetworkSettingsService.cpp
+++ b/src/ESP32React/NetworkSettingsService.cpp
@@ -9,7 +9,7 @@ NetworkSettingsService::NetworkSettingsService(AsyncWebServer * server, FS * fs,
    , _stopping(false) {
    addUpdateHandler([this] { reconfigureWiFiConnection(); }, false);
    // Eth is also bound to the WifiGeneric event handler
-    WiFi.onEvent([this](WiFiEvent_t event, WiFiEventInfo_t info) { WiFiEvent(event, info); });
+    // Network.onEvent([this](arduino_event_id_t event, arduino_event_info_t info) { WiFiEvent(event, info); });
 }

 static bool formatBssid(const String & bssid, uint8_t (&mac)[6]) {
@@ -34,8 +34,8 @@ void NetworkSettingsService::begin() {
    WiFi.persistent(false);
    WiFi.setAutoReconnect(false);

-    WiFi.mode(WIFI_MODE_MAX);
-    WiFi.mode(WIFI_MODE_NULL);
+    WiFi.mode(WIFI_STA);
+    WiFi.mode(WIFI_OFF);

    // scan settings give connect issues since arduino 2.0.14 and arduino 3.x.x with some wifi systems
    // WiFi.setScanMethod(WIFI_ALL_CHANNEL_SCAN); // default is FAST_SCAN
@@ -62,28 +62,124 @@ void NetworkSettingsService::loop() {
        _lastConnectionAttempt = currentMillis;
        manageSTA();
    }
+    static uint8_t connect = 0;
+    enum uint8_t {
+        CONNECT_IDLE = 0,
+        CONNECT_WAIT_ETH,
+        CONNECT_WAIT_IP4,
+        CONNECT_WAIT_ETH_IP4,
+        CONNECT_WAIT_IP6,
+        CONNECT_WAIT_ETH_IP6,
+        CONNECT_ETH_ACTIVE,
+        CONNECT_WIFI_ACTIVE
+    };
+    switch (connect) {
+    default:
+        connect = CONNECT_IDLE;
+        break;
+    case CONNECT_IDLE:
+        if (ETH.started() && _state.ssid.length() == 0) {
+            emsesp::EMSESP::logger().info("ETH started");
+            ETH.setHostname(emsesp::EMSESP::system_.hostname().c_str());
+            ETH.enableIPv6(true);
+            if (_state.staticIPConfig) {
+                ETH.config(_state.localIP, _state.gatewayIP, _state.subnetMask, _state.dnsIP1, _state.dnsIP2);
+            }
+            connect = CONNECT_WAIT_ETH;
+        }
+        if (WiFi.isConnected()) {
+            emsesp::EMSESP::logger().info("Wifi connected");
+            if (_state.tx_power == 0) {
+                setWiFiPowerOnRSSI();
+            }
+            mDNS_start();
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_WAIT_IP4;
+        }
+        break;
+    case CONNECT_WAIT_ETH:
+        if (ETH.connected()) {
+            emsesp::EMSESP::logger().info("ETH connected");
+            emsesp::EMSESP::system_.ethernet_connected(true);
+            mDNS_start();
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_WAIT_ETH_IP4;
+        }
+        break;
+    case CONNECT_WAIT_ETH_IP4:
+        if (ETH.hasIP()) {
+            emsesp::EMSESP::logger().info("ETH IPv4: %s", ETH.localIP().toString().c_str());
+            connect = CONNECT_WAIT_ETH_IP6;
+        }
+        if (!ETH.connected()) {
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        break;
+    case CONNECT_WAIT_ETH_IP6:
+        if (ETH.hasLinkLocalIPv6() && ETH.hasGlobalIPv6()) {
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        if (!ETH.connected()) {
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        break;
+    case CONNECT_ETH_ACTIVE:
+        if (!ETH.connected()) {
+            emsesp::EMSESP::logger().info("ETH disconnected");
+            emsesp::EMSESP::system_.ethernet_connected(false);
+            emsesp::EMSESP::system_.has_ipv6(false);
+            connect = CONNECT_IDLE;
+        }
+        break;
+    case CONNECT_WAIT_IP4:
+        if (!WiFi.localIP().toString().isEmpty()) {
+            emsesp::EMSESP::logger().info("Wifi IPv4: %s", WiFi.localIP().toString().c_str());
+            connect = CONNECT_WAIT_IP6;
+        }
+        if (!WiFi.isConnected()) {
+            connect = CONNECT_ETH_ACTIVE;
+        }
+        break;
+    case CONNECT_WAIT_IP6:
+        if (WiFi.linkLocalIPv6().toString() != "::" && WiFi.globalIPv6().toString() != "::") {
+            emsesp::EMSESP::logger().info("Wifi IPv6: %s, %s", WiFi.linkLocalIPv6().toString().c_str(), WiFi.globalIPv6().toString().c_str());
+            emsesp::EMSESP::system_.has_ipv6(true);
+            connect = CONNECT_WIFI_ACTIVE;
+        }
+        if (!WiFi.isConnected()) {
+            connect = CONNECT_WIFI_ACTIVE;
+        }
+        break;
+    case CONNECT_WIFI_ACTIVE:
+        if (!WiFi.isConnected()) {
+            emsesp::EMSESP::logger().info("WiFi disconnected");
+            if (_stopping) {
+                _lastConnectionAttempt = 0;
+                _stopping              = false;
+            }
+            emsesp::EMSESP::system_.has_ipv6(false);
+            connect = CONNECT_IDLE;
+        }
+        break;
+    }
 }

 void NetworkSettingsService::manageSTA() {
    // Abort if already connected, or if we have no SSID
    if (WiFi.isConnected() || _state.ssid.length() == 0) {
-#if ESP_IDF_VERSION_MAJOR >= 5
-        if (_state.ssid.length() == 0) {
-            ETH.enableIPv6(true);
-        }
-#endif
        return;
    }

    // Connect or reconnect as required
    if ((WiFi.getMode() & WIFI_STA) == 0) {
-#if ESP_IDF_VERSION_MAJOR >= 5
+        WiFi.setHostname(_state.hostname.c_str());     // updates shared default_hostname buffer
+        WiFi.enableSTA(true);                          // creates the STA netif
+        WiFi.STA.setHostname(_state.hostname.c_str()); // pushes to esp_netif_set_hostname
        WiFi.enableIPv6(true);
-#endif
        if (_state.staticIPConfig) {
            WiFi.config(_state.localIP, _state.gatewayIP, _state.subnetMask, _state.dnsIP1, _state.dnsIP2); // configure for static IP
        }
-        WiFi.setHostname(_state.hostname.c_str()); // set hostname

        // www.esp32.com/viewtopic.php?t=12055
        if (_state.bandwidth20) {
@@ -293,7 +389,7 @@ const char * NetworkSettingsService::disconnectReason(uint8_t code) {
 }

 // handles both WiFI and Ethernet
-void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info) {
+void NetworkSettingsService::WiFiEvent(arduino_event_id_t event, arduino_event_info_t info) {
 #ifndef EMSESP_STANDALONE

    switch (event) {
@@ -305,7 +401,7 @@ void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info)
        break;

    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
-        connectcount_++; // count the number of WiFi reconnects
+        connectcount_ = connectcount_ + 1; // count the number of WiFi reconnects
        emsesp::EMSESP::logger().warning("WiFi disconnected (#%d). Reason: %s (%d)",
                                         connectcount_,
                                         disconnectReason(info.wifi_sta_disconnected.reason),
@@ -325,11 +421,11 @@ void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info)
        break;

    case ARDUINO_EVENT_ETH_START:
-        // configure for static IP
+        // apply hostname FIRST so DHCP DISCOVER carries the correct name
+        ETH.setHostname(emsesp::EMSESP::system_.hostname().c_str());
        if (_state.staticIPConfig) {
            ETH.config(_state.localIP, _state.gatewayIP, _state.subnetMask, _state.dnsIP1, _state.dnsIP2);
        }
-        ETH.setHostname(emsesp::EMSESP::system_.hostname().c_str());
        break;

    case ARDUINO_EVENT_ETH_GOT_IP:
@@ -360,25 +456,15 @@ void NetworkSettingsService::WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info)
        if (_state.tx_power == 0) {
            setWiFiPowerOnRSSI();
        }
-#if ESP_IDF_VERSION_MAJOR < 5
-        WiFi.enableIpV6(); // force ipv6
-#endif
        break;

    case ARDUINO_EVENT_ETH_CONNECTED:
-#if ESP_IDF_VERSION_MAJOR < 5
-        ETH.enableIpV6(); // force ipv6
-#endif
        break;

        // IPv6 specific - WiFi/Eth
    case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
    case ARDUINO_EVENT_ETH_GOT_IP6: {
-#if !TASMOTA_SDK && ESP_IDF_VERSION_MAJOR < 5
-        auto ip6 = IPv6Address((uint8_t *)info.got_ip6.ip6_info.ip.addr).toString();
-#else
-        auto ip6 = IPAddress(IPv6, (uint8_t *)info.got_ip6.ip6_info.ip.addr, 0).toString();
-#endif
+        auto         ip6  = IPAddress(IPv6, (uint8_t *)info.got_ip6.ip6_info.ip.addr, 0).toString();
        const char * link = event == ARDUINO_EVENT_ETH_GOT_IP6 ? "Eth" : "WiFi";
        if (ip6.startsWith("fe80")) {
            emsesp::EMSESP::logger().info("IPv6 (%s) local: %s", link, ip6.c_str());
--- a/src/ESP32React/NetworkSettingsService.h
+++ b/src/ESP32React/NetworkSettingsService.h
@@ -107,7 +107,7 @@ class NetworkSettingsService : public StatefulService<NetworkSettings> {

    volatile uint16_t connectcount_ = 0; // number of wifi reconnects

-    void         WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info);
+    void         WiFiEvent(arduino_event_id_t event, arduino_event_info_t info);
    void         mDNS_start() const;
    const char * disconnectReason(uint8_t code);
    void         reconfigureWiFiConnection();
--- a/src/ESP32React/NetworkStatus.cpp
+++ b/src/ESP32React/NetworkStatus.cpp
@@ -2,7 +2,7 @@

 #include <emsesp.h>

-#ifdef TASMOTA_SDK
+#ifdef NO_TLS_SUPPORT
 #include "lwip/dns.h"
 #endif

@@ -31,22 +31,13 @@ void NetworkStatus::networkStatus(AsyncWebServerRequest * request) {
    // for both connections show ethernet
    if (ethernet_connected) {
        // Ethernet
-        root["local_ip"] = ETH.localIP().toString();
-#if ESP_IDF_VERSION_MAJOR < 5
-        root["local_ipv6"] = ETH.localIPv6().toString();
-#else
-        root["local_ipv6"] = ETH.linkLocalIPv6().toString();
-#endif
+        root["local_ip"]    = ETH.localIP().toString();
+        root["local_ipv6"]  = ETH.linkLocalIPv6().toString();
        root["mac_address"] = ETH.macAddress();
        root["subnet_mask"] = ETH.subnetMask().toString();
        root["gateway_ip"]  = ETH.gatewayIP().toString();
-#ifdef TASMOTA_SDK
-        IPAddress dnsIP1 = IPAddress(dns_getserver(0));
-        IPAddress dnsIP2 = IPAddress(dns_getserver(1));
-#else
-        IPAddress dnsIP1 = ETH.dnsIP(0);
-        IPAddress dnsIP2 = ETH.dnsIP(1);
-#endif
+        IPAddress dnsIP1    = ETH.dnsIP(0);
+        IPAddress dnsIP2    = ETH.dnsIP(1);
        if (IPUtils::isSet(dnsIP1)) {
            root["dns_ip_1"] = dnsIP1.toString();
        }
@@ -54,12 +45,8 @@ void NetworkStatus::networkStatus(AsyncWebServerRequest * request) {
            root["dns_ip_2"] = dnsIP2.toString();
        }
    } else if (wifi_status == WL_CONNECTED) {
-        root["local_ip"] = WiFi.localIP().toString();
-#if ESP_IDF_VERSION_MAJOR < 5
-        root["local_ipv6"] = WiFi.localIPv6().toString();
-#else
-        root["local_ipv6"] = WiFi.linkLocalIPv6().toString();
-#endif
+        root["local_ip"]        = WiFi.localIP().toString();
+        root["local_ipv6"]      = WiFi.linkLocalIPv6().toString();
        root["mac_address"]     = WiFi.macAddress();
        root["rssi"]            = WiFi.RSSI();
        root["ssid"]            = WiFi.SSID();
@@ -71,14 +58,8 @@ void NetworkStatus::networkStatus(AsyncWebServerRequest * request) {
        if (WiFi.gatewayIP() != INADDR_NONE) {
            root["gateway_ip"] = WiFi.gatewayIP().toString();
        }
-
-#ifdef TASMOTA_SDK
-        IPAddress dnsIP1 = IPAddress(dns_getserver(0));
-        IPAddress dnsIP2 = IPAddress(dns_getserver(1));
-#else
        IPAddress dnsIP1 = WiFi.dnsIP(0);
        IPAddress dnsIP2 = WiFi.dnsIP(1);
-#endif
        if (dnsIP1 != INADDR_NONE) {
            root["dns_ip_1"] = dnsIP1.toString();
        }
--- a/src/core/EMSESP_Version.h
+++ b/src/core/EMSESP_Version.h
@@ -69,9 +69,7 @@ class EMSESP_Version {
            return a.major_ < b.major_;
        if (a.minor_ != b.minor_)
            return a.minor_ < b.minor_;
-        if (a.patch_ != b.patch_)
-            return a.patch_ < b.patch_;
-        return a.prerelease_ < b.prerelease_;
+        return a.patch_ < b.patch_;
    }

    friend bool operator>(const EMSESP_Version & a, const EMSESP_Version & b) {
@@ -79,7 +77,7 @@ class EMSESP_Version {
    }

    friend bool operator==(const EMSESP_Version & a, const EMSESP_Version & b) {
-        return a.major_ == b.major_ && a.minor_ == b.minor_ && a.patch_ == b.patch_ && a.prerelease_ == b.prerelease_;
+        return a.major_ == b.major_ && a.minor_ == b.minor_ && a.patch_ == b.patch_;
    }

    friend bool operator!=(const EMSESP_Version & a, const EMSESP_Version & b) {
--- a/src/core/analogsensor.cpp
+++ b/src/core/analogsensor.cpp
@@ -347,23 +347,13 @@ void AnalogSensor::reload(bool get_nvs) {
            sensor.polltime_ = sensor.value() != 0 ? uuid::get_uptime() + (sensor.factor() * 1000) : 0;
        } else if (sensor.type() >= AnalogType::PWM_0 && sensor.type() <= AnalogType::PWM_2) {
            LOG_DEBUG("PWM output on GPIO %02d", sensor.gpio());
-#if ESP_IDF_VERSION_MAJOR >= 5
            ledcAttach(sensor.gpio(), sensor.factor(), 13);
-#else
-            uint8_t channel = sensor.type() - AnalogType::PWM_0;
-            ledcSetup(channel, sensor.factor(), 13);
-            ledcAttachPin(sensor.gpio(), channel);
-#endif
            if (sensor.offset() > 100) {
                sensor.set_offset(100);
            } else if (sensor.offset() < 0) {
                sensor.set_offset(0);
            }
-#if ESP_IDF_VERSION_MAJOR >= 5
            ledcWrite(sensor.gpio(), (uint32_t)(sensor.offset() * 8191 / 100));
-#else
-            ledcWrite(channel, (uint32_t)(sensor.offset() * 8191 / 100));
-#endif
            sensor.set_value(sensor.offset());
            sensor.set_uom(DeviceValueUOM::PERCENT);
            publish_sensor(sensor);
@@ -1041,12 +1031,7 @@ bool AnalogSensor::command_setvalue(const char * value, const int8_t gpio) {
                }
                sensor.set_offset(val);
                sensor.set_value(val);
-#if ESP_IDF_VERSION_MAJOR >= 5
                ledcWrite(sensor.gpio(), (uint32_t)(sensor.offset() * 8191 / 100));
-#else
-                uint8_t channel = sensor.type() - AnalogType::PWM_0;
-                ledcWrite(channel, (uint32_t)(val * 8191 / 100));
-#endif
            } else {
                return false;
            }
--- a/src/core/default_settings.h
+++ b/src/core/default_settings.h
@@ -285,6 +285,8 @@ enum {
 #define EMSESP_PLATFORM "ESP32S3"
 #elif CONFIG_IDF_TARGET_ESP32 || EMSESP_STANDALONE
 #define EMSESP_PLATFORM "ESP32"
+#elif CONFIG_IDF_TARGET_ESP32C6
+#define EMSESP_PLATFORM "ESP32C6"
 #else
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -293,12 +295,9 @@ enum {
 #ifndef STRINGIZE
 #define STRINGIZE(s) #s
 #endif
-#ifdef TASMOTA_SDK
+
 #define ARDUINO_VERSION_STR(major, minor, patch) "Tasmota Arduino v" STRINGIZE(major) "." STRINGIZE(minor) "." STRINGIZE(patch)
-#else
-#define ARDUINO_VERSION_STR(major, minor, patch) "ESP32 Arduino v" STRINGIZE(major) "." STRINGIZE(minor) "." STRINGIZE(patch)
-#endif
 #define ARDUINO_VERSION ARDUINO_VERSION_STR(ESP_ARDUINO_VERSION_MAJOR, ESP_ARDUINO_VERSION_MINOR, ESP_ARDUINO_VERSION_PATCH)
-#endif

 #endif
+#endif
--- a/src/core/emsdevice.cpp
+++ b/src/core/emsdevice.cpp
@@ -387,10 +387,10 @@ void EMSdevice::toggle_fetch(uint16_t telegram_id, bool toggle) {
 }

 // get status of automatic fetch for a telegramID
-bool EMSdevice::is_fetch(uint16_t telegram_id, uint8_t len) const {
+bool EMSdevice::is_fetch(uint16_t telegram_id) const {
    for (const auto & tf : telegram_functions_) {
        if (tf.telegram_type_id_ == telegram_id) {
-            return tf.fetch_ && tf.length_ >= len;
+            return tf.fetch_;
        }
    }
    return false;
--- a/src/core/emsdevice.h
+++ b/src/core/emsdevice.h
@@ -362,7 +362,7 @@ class EMSdevice {
    const char * telegram_type_name(std::shared_ptr<const Telegram> telegram);
    void         fetch_values();
    void         toggle_fetch(uint16_t telegram_id, bool toggle);
-    bool         is_fetch(uint16_t telegram_id, uint8_t len = 0) const;
+    bool         is_fetch(uint16_t telegram_id) const;
    bool         is_received(uint16_t telegram_id) const;
    bool         has_telegram_id(uint16_t id) const;
    void         ha_config_clear();
--- a/src/core/shuntingYard.cpp
+++ b/src/core/shuntingYard.cpp
@@ -380,11 +380,15 @@ std::string commands(std::string & expr, bool quotes) {
            if (return_code != CommandRet::OK && return_code != CommandRet::NO_VALUE) {
                return expr = "";
            }
-
-            std::string data = output["api_data"] | "";
-            if (!isnum(data) && quotes) {
-                data.insert(data.begin(), '"');
-                data.insert(data.end(), '"');
+            std::string data;
+            if (output["api_data"].is<std::string>()) {
+                data = output["api_data"].as<std::string>();
+                if (!isnum(data) && quotes) {
+                    data.insert(data.begin(), '"');
+                    data.insert(data.end(), '"');
+                }
+            } else {
+                serializeJson(output, data);
            }
            expr.replace(f, l, data);
            e        = f + data.length();
@@ -700,8 +704,7 @@ std::string compute(const std::string & expr) {
        std::string  cmd = expr_new.substr(f, e - f).c_str();
        JsonDocument doc;
        if (DeserializationError::Ok == deserializeJson(doc, cmd)) {
-            HTTPClient * http = new HTTPClient;
-            std::string  url, header_s, value_s, method_s, key_s, keys_s;
+            std::string url, header_s, value_s, method_s, key_s, keys_s;
            // search keys lower case
            for (JsonPair p : doc.as<JsonObject>()) {
                if (Helpers::toLower(p.key().c_str()) == "url") {
@@ -720,58 +723,150 @@ std::string compute(const std::string & expr) {
                    keys_s = p.key().c_str();
                }
            }
-            if (http->begin(url.c_str())) {
-                int httpResult = 0;
-                for (JsonPair p : doc[header_s].as<JsonObject>()) {
-                    http->addHeader(p.key().c_str(), p.value().as<std::string>().c_str());
+            bool        content_set = false;
+            std::string value       = doc[value_s] | "";
+            std::string method      = doc[method_s] | "GET";
+            if (value.length()) {
+                method = "POST";
+            }
+            std::string result;
+            int         httpResult = 0;
+#ifndef NO_TLS_SUPPORT
+            if (Helpers::toLower(url.c_str()).starts_with("https://")) {
+                WiFiClient *    basic_client = new WiFiClient;
+                ESP_SSLClient * ssl_client   = new ESP_SSLClient;
+                ssl_client->setInsecure(); // with root CA we should set here: ssl_client->setCACert(rootCACert);
+                ssl_client->setBufferSizes(1024, 1024);
+                ssl_client->setSessionTimeout(120); // Set the timeout in seconds (>=120 seconds)
+                url.replace(0, 8, "");
+                std::string host  = url;
+                auto        index = url.find_first_of('/');
+                if (index != std::string::npos) {
+                    host = url.substr(0, index);
+                    url.replace(0, index, "");
                }
-                std::string value  = doc[value_s] | "";
-                std::string method = doc[method_s] | "get";
-
-                // if there is data, force a POST
-                if (value.length() || Helpers::toLower(method) == "post") {
-                    if (value.find_first_of('{') != std::string::npos) {
-                        http->addHeader(asyncsrv::T_Content_Type, asyncsrv::T_application_json, false); // auto-set to JSON
-                    }
-                    httpResult = http->POST(value.c_str());
-                } else {
-                    httpResult = http->GET(); // normal GET
+                /*
+                index = host.find_first_of('@');
+                std::string auth;
+                if (index != std::string::npos) {
+                    auth = base64::encode(host.substr(0, index));
+                    host.replace(0, index, "");
                }
-
-                if (httpResult > 0) {
-                    std::string  result = http->getString().c_str();
-                    std::string  key    = doc[key_s] | "";
-                    JsonDocument keys_doc; // JsonDocument to hold "keys" after doc is parsed with HTTP body
-                    if (doc[keys_s].is<JsonArray>()) {
-                        keys_doc.set(doc[keys_s].as<JsonArray>());
-                    }
-                    JsonArray keys = keys_doc.as<JsonArray>();
-
-                    if (key.length() || !keys.isNull()) {
-                        doc.clear();
-                        if (DeserializationError::Ok == deserializeJson(doc, result)) {
-                            if (key.length()) {
-                                result = doc[key.c_str()].as<std::string>();
+                */
+                ssl_client->setClient(basic_client);
+                if (ssl_client->connect(host.c_str(), 443)) {
+                    if (value.length() || Helpers::toLower(method) == "post") {
+                        ssl_client->print("POST ");
+                        ssl_client->print(url.c_str());
+                        ssl_client->println(" HTTP/1.1");
+                        ssl_client->print("Host: ");
+                        ssl_client->println(host.c_str());
+                        for (JsonPair p : doc[header_s].as<JsonObject>()) {
+                            content_set |= (emsesp::Helpers::toLower(p.key().c_str()) == "content-type");
+                            ssl_client->print(p.key().c_str());
+                            ssl_client->print(": ");
+                            ssl_client->println(p.value().as<std::string>().c_str());
+                        }
+                        if (!content_set) {
+                            ssl_client->print("Content-Type: ");
+                            if (value.starts_with('{')) {
+                                ssl_client->println(asyncsrv::T_application_json);
                            } else {
-                                JsonVariant json = doc.as<JsonVariant>();
-                                for (JsonVariant keys_key : keys) {
-                                    if (keys_key.is<std::string>() && json.is<JsonObject>()) {
-                                        json = json[keys_key.as<std::string>()].as<JsonVariant>();
-                                    } else if (keys_key.is<int>() && json.is<JsonArray>()) {
-                                        json = json[keys_key.as<int>()].as<JsonVariant>();
-                                    } else {
-                                        break; // type mismatch
-                                    }
-                                }
-                                result = json.as<std::string>();
+                                ssl_client->println(asyncsrv::T_text_plain);
                            }
                        }
+                        ssl_client->print("Content-Length: ");
+                        ssl_client->println(value.length());
+                        ssl_client->println("Connection: close");
+                        ssl_client->print("\r\n");
+                        ssl_client->print(value.c_str());
+                    } else {
+                        ssl_client->print("GET ");
+                        ssl_client->print(url.c_str());
+                        ssl_client->println(" HTTP/1.1");
+                        ssl_client->print("Host: ");
+                        ssl_client->println(host.c_str());
+                        for (JsonPair p : doc[header_s].as<JsonObject>()) {
+                            ssl_client->print(p.key().c_str());
+                            ssl_client->print(": ");
+                            ssl_client->println(p.value().as<std::string>().c_str());
+                        }
+                        ssl_client->println("Connection: close");
+                    }
+                    auto ms = millis();
+                    while (!ssl_client->available() && millis() - ms < 3000) {
+                        delay(0);
+                    }
+                    while (ssl_client->available()) {
+                        result += (char)ssl_client->read();
+                    }
+                    ssl_client->stop();
+                    index = result.find_first_of(' ');
+                    if (index != std::string::npos) {
+                        httpResult = stoi(result.substr(index + 1, 3));
+                    }
+                    index = result.find("\r\n\r\n");
+                    if (index != std::string::npos) {
+                        result.replace(0, index + 4, "");
+                    }
+                }
+                delete ssl_client;
+                delete basic_client;
+            } else
+#endif
+                if (Helpers::toLower(url.c_str()).starts_with("http://")) {
+                HTTPClient * http = new HTTPClient;
+                if (http->begin(url.c_str())) {
+                    for (JsonPair p : doc[header_s].as<JsonObject>()) {
+                        http->addHeader(p.key().c_str(), p.value().as<std::string>().c_str());
+                        content_set |= (emsesp::Helpers::toLower(p.key().c_str()) == "content-type");
+                    }
+                    if (value.length() || Helpers::toLower(method) == "post") {
+                        if (!content_set) {
+                            http->addHeader("Content-Type", value.starts_with('{') ? asyncsrv::T_application_json : asyncsrv::T_text_plain);
+                        }
+                        httpResult = http->POST(value.c_str());
+                    } else {
+                        httpResult = http->GET(); // normal GET
+                    }
+                    if (httpResult > 0) {
+                        result = http->getString().c_str();
                    }
-                    expr_new.replace(f, e - f, result.c_str());
                }
                http->end();
                delete http;
            }
+            if (httpResult == 200) {
+                std::string  key = doc[key_s] | "";
+                JsonDocument keys_doc; // JsonDocument to hold "keys" after doc is parsed with HTTP body
+                if (doc[keys_s].is<JsonArray>()) {
+                    keys_doc.set(doc[keys_s].as<JsonArray>());
+                }
+                JsonArray keys = keys_doc.as<JsonArray>();
+                if (key.length() || !keys.isNull()) {
+                    doc.clear();
+                    if (DeserializationError::Ok == deserializeJson(doc, result)) {
+                        if (key.length()) {
+                            result = doc[key.c_str()].as<std::string>();
+                        } else {
+                            JsonVariant json = doc.as<JsonVariant>();
+                            for (JsonVariant keys_key : keys) {
+                                if (keys_key.is<std::string>() && json.is<JsonObject>()) {
+                                    json = json[keys_key.as<std::string>()].as<JsonVariant>();
+                                } else if (keys_key.is<int>() && json.is<JsonArray>()) {
+                                    json = json[keys_key.as<int>()].as<JsonVariant>();
+                                } else {
+                                    break; // type mismatch
+                                }
+                            }
+                            result = json.as<std::string>();
+                        }
+                    }
+                }
+                expr_new.replace(f, e - f, result);
+            } else if (httpResult != 0) {
+                EMSESP::logger().warning("URL command failed with https code: %d, response: %s", httpResult, result.c_str());
+            }
        }
        f = expr_new.find_first_of('{', e);
    }
--- a/src/core/system.cpp
+++ b/src/core/system.cpp
@@ -37,6 +37,15 @@
 #include "../test/test.h"
 #endif

+#ifndef NO_TLS_SUPPORT
+#define ENABLE_SMTP
+#define USE_ESP_SSLCLIENT
+#define READYCLIENT_SSL_CLIENT ESP_SSLClient
+#define READYCLIENT_TYPE_1 // TYPE 1 when using ESP_SSLClient
+#include <ESP_SSLClient.h>
+#include <ReadyMail.h>
+#endif
+
 namespace emsesp {

 // Languages supported. Note: the order is important
@@ -105,6 +114,115 @@ bool System::command_send(const char * value, const int8_t id) {
    return EMSESP::txservice_.send_raw(value); // ignore id
 }

+bool System::command_sendmail(const char * value, const int8_t id) {
+    bool     enabled = false;
+    bool     ssl, starttls;
+    uint16_t port;
+    String   server, login, pass, sender, recp, subject;
+    EMSESP::webSettingsService.read([&](WebSettings & settings) {
+        enabled  = settings.email_enabled;
+        ssl      = settings.email_ssl;
+        starttls = settings.email_starttls;
+        server   = settings.email_server;
+        port     = settings.email_port;
+        login    = settings.email_login;
+        pass     = settings.email_pass;
+        sender   = settings.email_sender;
+        recp     = settings.email_recp;
+        subject  = settings.email_subject;
+    });
+    if (!enabled) {
+        return false;
+    }
+    LOG_DEBUG("Command sendmail port %d%s called with '%s'", port, ssl ? " (SSL)" : starttls ? " (STARTTLS)" : "", value);
+    // LOG_DEBUG("Command sendmail port %d called with '%s'", port, value);
+    bool success = false;
+
+#ifndef NO_TLS_SUPPORT
+    WiFiClient *    basic_client = new WiFiClient;
+    ESP_SSLClient * ssl_client   = new ESP_SSLClient;
+    ReadyClient *   r_client     = new ReadyClient(*ssl_client);
+    SMTPClient *    smtp         = new SMTPClient(*r_client);
+
+    ssl_client->setClient(basic_client);
+    ssl_client->setInsecure();
+    ssl_client->setBufferSizes(1024, 1024);
+    r_client->addPort(port, starttls ? readymail_protocol_tls : ssl ? readymail_protocol_ssl : readymail_protocol_plain_text);
+
+    // smtp->connect(server, port, sendmailCallback);
+    smtp->connect(server, port);
+    if (!smtp->isConnected()) {
+        LOG_ERROR("Sendmail connection error");
+        delete smtp;
+        delete r_client;
+        delete ssl_client;
+        delete basic_client;
+        return false;
+    }
+
+    // LOG_INFO("authenticate %s:%s", login.c_str(), pass.c_str());
+    smtp->authenticate(login, pass, readymail_auth_password);
+    if (!smtp->isAuthenticated()) {
+        LOG_ERROR("Sendmail authenticate error");
+        delete smtp;
+        delete r_client;
+        delete ssl_client;
+        delete basic_client;
+        return false;
+    }
+    JsonDocument doc;
+    String       body = value;
+    if (body.length()) {
+        auto error = deserializeJson(doc, (const char *)value);
+        if (!error && doc.as<JsonObject>().size() >= 0) {
+            subject = doc["subject"] | subject;
+            recp    = doc["to"] | recp;
+            sender  = doc["from"] | sender;
+            body    = doc["body"] | body;
+        }
+    }
+
+    SMTPMessage & msg = smtp->getMessage();
+    msg.headers.add(rfc822_subject, subject);
+    msg.headers.add(rfc822_from, sender);
+    msg.headers.add(rfc822_to, recp);
+
+    // Use addCustom to add custom header e.g. Importance and Priority.
+    // msg.headers.addCustom("Importance", PRIORITY);
+    // msg.headers.addCustom("X-MSMail-Priority", PRIORITY);
+    // msg.headers.addCustom("X-Priority", PRIORITY_NUM);
+    EMSESP::webSchedulerService.computed_value.clear();
+    EMSESP::webSchedulerService.raw_value = body.c_str();
+    for (uint16_t wait = 0; wait < 2000 && !EMSESP::webSchedulerService.raw_value.empty(); wait++) {
+        delay(1);
+    }
+    if (!EMSESP::webSchedulerService.computed_value.empty()) {
+        body = EMSESP::webSchedulerService.computed_value.c_str();
+        EMSESP::webSchedulerService.computed_value.clear();
+        EMSESP::webSchedulerService.computed_value.shrink_to_fit(); // free allocated memory
+    }
+    msg.text.body(body);
+
+    // bodyText.replace("\r\n", "<br>\r\n");
+    // msg.html.body("<html><body><div style=\"color:#cc0066;\">" + bodyText + "</div></body></html>");
+    // msg.html.transferEncoding("base64");
+
+    // With embedFile function, the html message will send as attachment.
+    // if (EMBED_MESSAGE)
+    //    msg.html.embedFile(true, "msg.html", embed_message_type_attachment);
+
+    msg.timestamp = time(nullptr);
+
+    success = smtp->send(msg);
+
+    delete smtp;
+    delete r_client;
+    delete ssl_client;
+    delete basic_client;
+#endif
+    return success;
+}
+
 // return string of languages and count
 std::string System::languages_string() {
    std::string languages_string = std::to_string(NUM_LANGUAGES) + " languages (";
@@ -237,7 +355,8 @@ bool System::command_message(const char * value, const int8_t id, JsonObject out
    LOG_INFO("Message: %s", EMSESP::webSchedulerService.computed_value.c_str());  // send to log
    Mqtt::queue_publish(F_(message), EMSESP::webSchedulerService.computed_value); // send to MQTT if enabled
    output["api_data"] = EMSESP::webSchedulerService.computed_value;              // send to API
-
+    EMSESP::webSchedulerService.computed_value.clear();
+    EMSESP::webSchedulerService.computed_value.shrink_to_fit();
    return true;
 }

@@ -461,7 +580,6 @@ void System::system_restart(const char * partitionname) {

    Mqtt::disconnect(); // gracefully disconnect MQTT, needed for QOS1
    EMSuart::stop();    // stop UART so there is no interference
-
 #ifndef EMSESP_STANDALONE
    delay(1000);   // wait 1 second
    ESP.restart(); // ka-boom! - this is the only place where the ESP32 restart is called
@@ -563,7 +681,6 @@ void System::store_settings(WebSettings & settings) {

    locale_         = settings.locale;
    developer_mode_ = settings.developer_mode;
-
    // start services
    if (settings.modbus_enabled) {
        if (EMSESP::modbus_ == nullptr) {
@@ -605,20 +722,11 @@ void System::start() {
    appfree_ = esp_ota_get_running_partition()->size / 1024 - appused_;
    refreshHeapMem(); // refresh free heap and max alloc heap
 #if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR < 5
-    temp_sensor_config_t temp_sensor = TSENS_CONFIG_DEFAULT();
-    temp_sensor_get_config(&temp_sensor);
-    temp_sensor.dac_offset = TSENS_DAC_DEFAULT; // DEFAULT: range:-10℃ ~  80℃, error < 1℃.
-    temp_sensor_set_config(temp_sensor);
-    temp_sensor_start();
-    temp_sensor_read_celsius(&temperature_);
-#else
    temperature_sensor_config_t temp_sensor_config = TEMPERATURE_SENSOR_CONFIG_DEFAULT(-10, 80);
    temperature_sensor_install(&temp_sensor_config, &temperature_handle_);
    temperature_sensor_enable(temperature_handle_);
    temperature_sensor_get_celsius(temperature_handle_, &temperature_);
 #endif
-#endif
 #endif

    EMSESP::esp32React.getNetworkSettingsService()->read([&](NetworkSettings & networkSettings) {
@@ -839,16 +947,9 @@ void System::send_info_mqtt() {
        doc["IPv4 gateway"]    = uuid::printable_to_string(WiFi.gatewayIP());
        doc["IPv4 nameserver"] = uuid::printable_to_string(WiFi.dnsIP());

-#if ESP_IDF_VERSION_MAJOR < 5
-        if (WiFi.localIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.localIPv6().toString() != "::") {
-            doc["IPv6 address"] = uuid::printable_to_string(WiFi.localIPv6());
-        }
-#else
        if (WiFi.linkLocalIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.linkLocalIPv6().toString() != "::") {
            doc["IPv6 address"] = uuid::printable_to_string(WiFi.linkLocalIPv6());
        }
-
-#endif
    }
 #endif
    Mqtt::queue_publish_retain(F_(info), doc.as<JsonObject>()); // topic called "info" and it's Retained
@@ -957,12 +1058,11 @@ void System::network_init() {
        delay(500);
        digitalWrite(eth_power_, HIGH);
    }
-
-#if ESP_IDF_VERSION_MAJOR < 5
-    eth_present_ = ETH.begin(phy_addr, power, mdc, mdio, type, clock_mode);
-#else
    eth_present_ = ETH.begin(type, phy_addr, mdc, mdio, power, clock_mode);
-#endif
+    if (eth_present_) {
+        // Push hostname to the ETH netif immediately after it's created
+        ETH.setHostname(hostname_.c_str());
+    }
 #endif
 }

@@ -974,13 +1074,9 @@ void System::system_check() {

 #ifndef EMSESP_STANDALONE
 #if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR < 5
-        temp_sensor_read_celsius(&temperature_);
-#else
        temperature_sensor_get_celsius(temperature_handle_, &temperature_);
 #endif
 #endif
-#endif

 #ifdef EMSESP_PINGTEST
        static uint64_t ping_count = 0;
@@ -1032,6 +1128,7 @@ void System::commands_init() {
    Command::add(EMSdevice::DeviceType::SYSTEM, F_(read), System::command_read, FL_(read_cmd), CommandFlag::ADMIN_ONLY);
    Command::add(EMSdevice::DeviceType::SYSTEM, F_(send), System::command_send, FL_(send_cmd), CommandFlag::ADMIN_ONLY);
    Command::add(EMSdevice::DeviceType::SYSTEM, F_(fetch), System::command_fetch, FL_(fetch_cmd), CommandFlag::ADMIN_ONLY);
+    Command::add(EMSdevice::DeviceType::SYSTEM, F_(sendmail), System::command_sendmail, FL_(sendmail_cmd), CommandFlag::ADMIN_ONLY);
    Command::add(EMSdevice::DeviceType::SYSTEM, F_(restart), System::command_restart, FL_(restart_cmd), CommandFlag::ADMIN_ONLY);
    Command::add(EMSdevice::DeviceType::SYSTEM, F_(format), System::command_format, FL_(format_cmd), CommandFlag::ADMIN_ONLY);
    Command::add(EMSdevice::DeviceType::SYSTEM, F_(txpause), System::command_txpause, FL_(txpause_cmd), CommandFlag::ADMIN_ONLY);
@@ -1280,16 +1377,9 @@ void System::show_system(uuid::console::Shell & shell) {
        shell.printfln(" IPv4 address: %s/%s", uuid::printable_to_string(WiFi.localIP()).c_str(), uuid::printable_to_string(WiFi.subnetMask()).c_str());
        shell.printfln(" IPv4 gateway: %s", uuid::printable_to_string(WiFi.gatewayIP()).c_str());
        shell.printfln(" IPv4 nameserver: %s", uuid::printable_to_string(WiFi.dnsIP()).c_str());
-#if ESP_IDF_VERSION_MAJOR < 5
-        if (WiFi.localIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.localIPv6().toString() != "::") {
-            shell.printfln(" IPv6 address: %s", uuid::printable_to_string(WiFi.localIPv6()).c_str());
-        }
-#else
        if (WiFi.linkLocalIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && WiFi.linkLocalIPv6().toString() != "::") {
            shell.printfln(" IPv6 address: %s", uuid::printable_to_string(WiFi.linkLocalIPv6()).c_str());
        }
-#endif
-
        break;

    case WL_CONNECT_FAILED:
@@ -1320,15 +1410,9 @@ void System::show_system(uuid::console::Shell & shell) {
        shell.printfln(" IPv4 address: %s/%s", uuid::printable_to_string(ETH.localIP()).c_str(), uuid::printable_to_string(ETH.subnetMask()).c_str());
        shell.printfln(" IPv4 gateway: %s", uuid::printable_to_string(ETH.gatewayIP()).c_str());
        shell.printfln(" IPv4 nameserver: %s", uuid::printable_to_string(ETH.dnsIP()).c_str());
-#if ESP_IDF_VERSION_MAJOR < 5
-        if (ETH.localIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && ETH.localIPv6().toString() != "::") {
-            shell.printfln(" IPv6 address: %s", uuid::printable_to_string(ETH.localIPv6()).c_str());
-        }
-#else
        if (ETH.linkLocalIPv6().toString() != "0000:0000:0000:0000:0000:0000:0000:0000" && ETH.linkLocalIPv6().toString() != "::") {
            shell.printfln(" IPv6 address: %s", uuid::printable_to_string(ETH.linkLocalIPv6()).c_str());
        }
-#endif
    }
    shell.println();

@@ -1350,10 +1434,10 @@ void System::show_system(uuid::console::Shell & shell) {
    }

    shell.println();
-
 #endif
 }

+
 // see if there is a restore of an older settings file that needs to be applied
 // note there can be only one file at a time
 bool System::check_restore() {
@@ -1653,8 +1737,8 @@ bool System::check_upgrade() {
    return false; // no reboot required
 }

-// map each config filename to its human-readable section key
 #ifndef EMSESP_STANDALONE
+// map each config filename to its human-readable section key
 static const std::pair<const char *, const char *> SECTION_MAP[] = {
    {NETWORK_SETTINGS_FILE, "Network"},
    {AP_SETTINGS_FILE, "AP"},
@@ -1713,7 +1797,7 @@ void System::exportSystemBackup(JsonObject output) {
    output["version"] = EMSESP_APP_VERSION; // add the version to the output

 #ifndef EMSESP_STANDALONE
-        // add date/time if NTP enabled and active
+    // add date/time if NTP enabled and active
    if ((esp_sntp_enabled()) && (EMSESP::system_.ntp_connected())) {
        time_t now = time(nullptr);
        if (now > 1500000000L) {
@@ -1769,27 +1853,16 @@ void System::exportSystemBackup(JsonObject output) {

    const char *   nvs_part = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, "nvs1") ? "nvs1" : "nvs"; // nvs1 is on 16MBs
    nvs_iterator_t it       = nullptr;
-#if ESP_IDF_VERSION_MAJOR < 5
-    it = nvs_entry_find(nvs_part, "ems-esp", NVS_TYPE_ANY);
-    if (it == nullptr) {
-#else
-    esp_err_t err = nvs_entry_find(nvs_part, "ems-esp", NVS_TYPE_ANY, &it);
+    esp_err_t      err      = nvs_entry_find(nvs_part, "ems-esp", NVS_TYPE_ANY, &it);
    if (err != ESP_OK) {
-#endif
        LOG_ERROR("Failed to find NVS entry for %s", nvs_part);
        return;
    }

    JsonArray entries = node["nvs"].to<JsonArray>();
-#if ESP_IDF_VERSION_MAJOR < 5
-    while (it != nullptr) {
-        nvs_entry_info_t info;
-        nvs_entry_info(it, &info);
-#else
    while (err == ESP_OK) {
        nvs_entry_info_t info;
        nvs_entry_info(it, &info);
-#endif
        JsonObject entry = entries.add<JsonObject>();
        entry["type"]    = info.type;
        entry["key"]     = info.key;
@@ -1824,14 +1897,8 @@ void System::exportSystemBackup(JsonObject output) {
            entry["value"] = EMSESP::nvs_.getString(info.key);
            break;
        }
-
-#if ESP_IDF_VERSION_MAJOR < 5
-        it = nvs_entry_next(it);
-    }
-#else
        err = nvs_entry_next(&it);
    }
-#endif

    if (it != nullptr) {
        nvs_release_iterator(it);
@@ -2633,12 +2700,12 @@ bool System::command_info(const char * value, const int8_t id, JsonObject output
        node["maxWebLogBuffer"] = settings.weblog_buffer;

        /*
-#if defined(EMSESP_UNITY)
-        node["webLogBuffer"] = 0;
-#else
-        node["webLogBuffer"] = EMSESP::webLogService.num_log_messages();
-#endif
-*/
+ #if defined(EMSESP_UNITY)
+         node["webLogBuffer"] = 0;
+ #else
+         node["webLogBuffer"] = EMSESP::webLogService.num_log_messages();
+ #endif
+ */
        node["modbusEnabled"]   = settings.modbus_enabled;
        node["forceHeatingOff"] = settings.boiler_heatingoff;
        node["developerMode"]   = settings.developer_mode;
@@ -3266,7 +3333,7 @@ void System::set_valid_system_gpios() {
    valid_system_gpios_ = string_range_to_vector("0-21", "2, 8, 12-17, 18-19");

 #elif CONFIG_IDF_TARGET_ESP32S2
-        // https://docs.espressif.com/projects/esp-idf/en/stable/esp32s2/api-reference/peripherals/gpio.html
+    // https://docs.espressif.com/projects/esp-idf/en/stable/esp32s2/api-reference/peripherals/gpio.html
    // excluded:
    // GPIO26 - GPIO32 = SPI flash and PSRAM
    // GPIO45 - GPIO46 = strapping pins
@@ -3279,7 +3346,7 @@ void System::set_valid_system_gpios() {
    valid_system_gpios_ = string_range_to_vector("0-46", "19, 20, 26-32, 45-46, 39-42, 22-25");

 #elif CONFIG_IDF_TARGET_ESP32S3
-        // https://docs.espressif.com/projects/esp-idf/en/stable/esp32s3/api-reference/peripherals/gpio.html
+    // https://docs.espressif.com/projects/esp-idf/en/stable/esp32s3/api-reference/peripherals/gpio.html
    // excluded:
    // GPIO3, GPIO45 - GPIO46 = strapping pins
    // GPIO26 - GPIO32 = SPI flash and PSRAM and not recommended
@@ -3298,7 +3365,7 @@ void System::set_valid_system_gpios() {
    }

 #elif CONFIG_IDF_TARGET_ESP32
-        // https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/peripherals/gpio.html
+    // https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/peripherals/gpio.html
    // excluded:
    // GPIO6 - GPIO11, GPIO16 - GPIO17 = used for SPI flash and PSRAM (dio mode only GPIO06-GPIO08, GPIO11)
    // GPIO20, GPIO24, GPIO28 - GPIO31 = don't exist
@@ -3329,6 +3396,10 @@ void System::set_valid_system_gpios() {
    } else {
        valid_system_gpios_ = string_range_to_vector("0-39", "6-11, 20, 24, 28-31");
    }
+#elif CONFIG_IDF_TARGET_ESP32C6
+    // https://docs.espressif.com/projects/esp-idf/en/v5.5.3/esp32c6/api-reference/peripherals/gpio.html
+    // 24-30 used for flash, 12-13 USB, 16-17 uart0
+    valid_system_gpios_ = string_range_to_vector("0-30", "12-13, 16-17, 24-30");
 #elif defined(EMSESP_STANDALONE)
    valid_system_gpios_ = string_range_to_vector("0-39");
 #endif
--- a/src/core/system.h
+++ b/src/core/system.h
@@ -37,11 +37,7 @@
 #include <uuid/log.h>
 #include <PButton.h>

-#if ESP_ARDUINO_VERSION_MAJOR < 3
-#define EMSESP_RGB_WRITE neopixelWrite
-#else
 #define EMSESP_RGB_WRITE rgbLedWrite
-#endif

 #if CONFIG_IDF_TARGET_ESP32
 // there is no official API available on the original ESP32
@@ -49,12 +45,8 @@ extern "C" {
 uint8_t temprature_sens_read();
 }
 #elif CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR < 5
-#include "driver/temp_sensor.h"
-#else
 #include "driver/temperature_sensor.h"
 #endif
-#endif

 using uuid::console::Shell;

@@ -103,6 +95,7 @@ class System {
    static bool command_info(const char * value, const int8_t id, JsonObject output);
    static bool command_response(const char * value, const int8_t id, JsonObject output);
    static bool command_service(const char * cmd, const char * value);
+    static bool command_sendmail(const char * value, const int8_t id);
    static bool command_txpause(const char * value, const int8_t id);

    static bool        get_value_info(JsonObject root, const char * cmd);
@@ -502,9 +495,7 @@ class System {
    uint32_t appfree_;

 #if CONFIG_IDF_TARGET_ESP32S3 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2
-#if ESP_IDF_VERSION_MAJOR >= 5
    temperature_sensor_handle_t temperature_handle_ = NULL;
-#endif
 #endif
    float temperature_ = 0;
 };
--- a/src/core/telegram.h
+++ b/src/core/telegram.h
@@ -159,10 +159,11 @@ class EMSbus {
  public:
    static uuid::log::Logger logger_;

-    static constexpr uint8_t EMS_MASK_UNSET     = 0xFF; // EMS bus type (budrus/junkers) hasn't been detected yet
-    static constexpr uint8_t EMS_MASK_HT3       = 0x80; // EMS bus type Junkers/HT3
-    static constexpr uint8_t EMS_MASK_BUDERUS   = 0xFF; // EMS bus type Buderus
-    static constexpr uint8_t EMS_TX_ERROR_LIMIT = 10;   // % limit of failed Tx read/write attempts before showing a warning
+    static constexpr uint8_t EMS_MASK_UNSET       = 0xFF; // EMS bus type (budrus/junkers) hasn't been detected yet
+    static constexpr uint8_t EMS_MASK_HT3         = 0x80; // EMS bus type Junkers/HT3
+    static constexpr uint8_t EMS_MASK_BUDERUS     = 0xFF; // EMS bus type Buderus
+    static constexpr uint8_t EMS_TX_ERROR_LIMIT   = 10;   // % limit of failed Tx read/write attempts before showing a warning
+    static constexpr uint8_t EMS_POLL_MATCH_LIMIT = 3;    // consecutive poll matches needed before declaring bus connected

    static bool is_ht3() {
        return (ems_mask_ == EMS_MASK_HT3);
@@ -210,7 +211,6 @@ class EMSbus {
        if (!last_bus_activity_) {
            bus_uptime_start_ = timestamp;
        }
-
        last_bus_activity_ = timestamp;
        bus_connected_     = true;
    }
--- a/src/core/temperaturesensor.cpp
+++ b/src/core/temperaturesensor.cpp
@@ -21,6 +21,12 @@
 #include "temperaturesensor.h"
 #include "emsesp.h"

+#ifdef ESP32
+#define YIELD
+#else
+#define YIELD yield()
+#endif
+
 namespace emsesp {

 uuid::log::Logger TemperatureSensor::logger_{F_(temperaturesensor), uuid::log::Facility::DAEMON};
@@ -75,6 +81,7 @@ void TemperatureSensor::loop() {
            LOG_DEBUG("Read sensor temperature");
 #endif
            if (bus_.reset() || parasite_) {
+                YIELD;
                bus_.skip();
                bus_.write(CMD_CONVERT_TEMP, parasite_ ? 1 : 0);
                state_     = State::READING;
@@ -253,16 +260,19 @@ int16_t TemperatureSensor::get_temperature_c(const uint8_t addr[]) {
        LOG_ERROR("Bus reset failed before reading scratchpad from %s", Sensor(addr).id());
        return EMS_VALUE_INT16_NOTSET;
    }
+    YIELD;

    uint8_t scratchpad[SCRATCHPAD_LEN] = {0};
    bus_.select(addr);
    bus_.write(CMD_READ_SCRATCHPAD);
    bus_.read_bytes(scratchpad, SCRATCHPAD_LEN);
+    YIELD;

    if (!bus_.reset()) {
        LOG_ERROR("Bus reset failed after reading scratchpad from %s", Sensor(addr).id());
        return EMS_VALUE_INT16_NOTSET;
    }
+    YIELD;

    if (bus_.crc8(scratchpad, SCRATCHPAD_LEN - 1) != scratchpad[SCRATCHPAD_LEN - 1]) {
        LOG_WARNING("Invalid scratchpad CRC: %02X%02X%02X%02X%02X%02X%02X%02X%02X from sensor %s",
--- a/src/devices/connect.cpp
+++ b/src/devices/connect.cpp
@@ -39,11 +39,11 @@ Connect::Connect(uint8_t device_type, uint8_t device_id, uint8_t product_id, con
                          DeviceValueUOM::DEGREES);
    // Roomthermostats
    for (uint8_t i = 0; i < 16; i++) {
-        register_telegram_type(0x0BDD + i, "Room", false, MAKE_PF_CB(process_roomThermostat));                 // broadcasted
-        register_telegram_type(0x0B3D + i, "Roomname", false, MAKE_PF_CB(process_roomThermostatName), 100);         // fetch for active circuits
+        register_telegram_type(0x0BDD + i, "Room", false, MAKE_PF_CB(process_roomThermostat));                    // broadcasted
+        register_telegram_type(0x0B3D + i, "Roomname", false, MAKE_PF_CB(process_roomThermostatName), 100);       // fetch for active circuits
        register_telegram_type(0x0BB5 + i, "Roomsettings", false, MAKE_PF_CB(process_roomThermostatSettings), 8); // fetch for active circuits
-        register_telegram_type(0x1230 + i, "Roomparams", false, MAKE_PF_CB(process_roomThermostatParam));      // fetch for active circuits
-        register_telegram_type(0x1244 + i, "Roomdata", false, MAKE_PF_CB(process_roomThermostatData));         // broadcasted
+        register_telegram_type(0x1230 + i, "Roomparams", false, MAKE_PF_CB(process_roomThermostatParam));         // fetch for active circuits
+        register_telegram_type(0x1244 + i, "Roomdata", false, MAKE_PF_CB(process_roomThermostatData));            // broadcasted
    }
    register_telegram_type(0xDB65, "Roomschedule", true, MAKE_PF_CB(process_roomSchedule));
    // 0x2040, broadcast 36 bytes:
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -166,14 +166,14 @@ Thermostat::Thermostat(uint8_t device_type, uint8_t device_id, uint8_t product_i
        set2_typeids              = {0x0421, 0x0422, 0x0423, 0x0424};
        summer_typeids            = {0x02AF, 0x02B0, 0x02B1, 0x02B2, 0x02B3, 0x02B4, 0x02B5, 0x02B6};
        curve_typeids             = {0x029B, 0x029C, 0x029D, 0x029E, 0x029F, 0x02A0, 0x02A1, 0x02A2};
-        summer2_typeids           = {0x0470, 0x0471, 0x0472, 0x0473, 0x0474, 0x0475, 0x0476, 0x0477, 0x0478};
+        summer2_typeids           = {0x0471, 0x0472, 0x0473, 0x0474, 0x0475, 0x0476, 0x0477, 0x0478};
        hp_typeids                = {0x0467, 0x0468, 0x0469, 0x046A};
        hpmode_typeids            = {0x0291, 0x0292, 0x0293, 0x0294};
        const size_t monitor_size = monitor_typeids.size();
        for (uint8_t i = 0; i < monitor_size; i++) {
            register_telegram_type(monitor_typeids[i], "RC300Monitor", false, MAKE_PF_CB(process_RC300Monitor), 33);
            register_telegram_type(set_typeids[i], "RC300Set", false, MAKE_PF_CB(process_RC300Set), 29);
-            register_telegram_type(summer_typeids[i], "RC300Summer", false, MAKE_PF_CB(process_RC300Summer), 14);
+            register_telegram_type(summer_typeids[i], "RC300Summer", false, MAKE_PF_CB(process_RC300Summer), 13);
            register_telegram_type(curve_typeids[i], "RC300Curves", false, MAKE_PF_CB(process_RC300Curve), 9);
            register_telegram_type(summer2_typeids[i], "RC300Summer2", false, MAKE_PF_CB(process_RC300Summer2), 8);
        }
@@ -202,7 +202,7 @@ Thermostat::Thermostat(uint8_t device_type, uint8_t device_id, uint8_t product_i
        if (model == EMSdevice::EMS_DEVICE_FLAG_RC100) {
            register_telegram_type(0x43F, "CRHolidays", true, MAKE_PF_CB(process_RC300Holiday), 6);
        } else {
-            register_telegram_type(0x269, "RC300Holiday", true, MAKE_PF_CB(process_RC300Holiday), 18);
+            register_telegram_type(0x269, "RC300Holiday", true, MAKE_PF_CB(process_RC300Holiday), 6);
        }
        register_telegram_type(0x16E, "Absent", true, MAKE_PF_CB(process_Absent), 1);
        register_telegram_type(0xBF, "ErrorMessage", false, MAKE_PF_CB(process_ErrorMessageBF));
--- a/src/emsesp_version.h
+++ b/src/emsesp_version.h
@@ -1 +1 @@
-#define EMSESP_APP_VERSION "3.8.2-dev.19"
+#define EMSESP_APP_VERSION "3.9.0-dev.0"
--- a/src/uart/emsuart_esp32.cpp
+++ b/src/uart/emsuart_esp32.cpp
@@ -39,7 +39,7 @@ uint32_t             inverse_mask = 0;
 // receive task, wait for break and call incoming_telegram
 void EMSuart::uart_event_task(void * pvParameters) {
    uart_event_t event;
-    uint8_t      telegram[UART_FIFO_LEN + 1]; // same size as in driver_install
+    uint8_t      telegram[UART_HW_FIFO_LEN(EMSUART_NUM) + 1]; // same size as in driver_install
    uint8_t      length = 0;

    while (1) {
@@ -66,18 +66,23 @@ void EMSuart::uart_event_task(void * pvParameters) {
 // initialize UART driver
 void EMSuart::start(const uint8_t tx_mode, const uint8_t rx_gpio, const uint8_t tx_gpio) {
    if (tx_mode_ == EMS_TXMODE_INIT) {
+#if CONFIG_IDF_TARGET_ESP32C6
+        uart_config_t uart_config = {.baud_rate           = EMSUART_BAUD,
+                                     .data_bits           = UART_DATA_8_BITS,
+                                     .parity              = UART_PARITY_DISABLE,
+                                     .stop_bits           = UART_STOP_BITS_1,
+                                     .flow_ctrl           = UART_HW_FLOWCTRL_DISABLE,
+                                     .rx_flow_ctrl_thresh = 0};
+#else
        uart_config_t uart_config = {.baud_rate           = EMSUART_BAUD,
                                     .data_bits           = UART_DATA_8_BITS,
                                     .parity              = UART_PARITY_DISABLE,
                                     .stop_bits           = UART_STOP_BITS_1,
                                     .flow_ctrl           = UART_HW_FLOWCTRL_DISABLE,
                                     .rx_flow_ctrl_thresh = 0,
-                                     .source_clk          = UART_SCLK_APB
-#if ESP_ARDUINO_VERSION_MAJOR >= 3
-                                     ,
-                                     .flags = {0}
+                                     .source_clk          = UART_SCLK_APB,
+                                     .flags               = {0}};
 #endif
-        };
 #if defined(EMSUART_RX_INVERT)
        inverse_mask |= UART_SIGNAL_RXD_INV;
 #endif
@@ -87,7 +92,12 @@ void EMSuart::start(const uint8_t tx_mode, const uint8_t rx_gpio, const uint8_t
        uart_param_config(EMSUART_NUM, &uart_config);
        uart_set_pin(EMSUART_NUM, tx_gpio, rx_gpio, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
        uart_set_line_inverse(EMSUART_NUM, inverse_mask);
-        uart_driver_install(EMSUART_NUM, UART_FIFO_LEN + 1, 0, UART_FIFO_LEN + 3, &uart_queue, 0); // buffer must be > fifo, queue can hold data+break+overflow message
+        uart_driver_install(EMSUART_NUM,
+                            UART_HW_FIFO_LEN(EMSUART_NUM) + 1,
+                            0,
+                            UART_HW_FIFO_LEN(EMSUART_NUM) + 3,
+                            &uart_queue,
+                            0); // buffer must be > fifo, queue can hold data+break+overflow message
        uart_set_rx_full_threshold(EMSUART_NUM, 1);
        uart_set_rx_timeout(EMSUART_NUM, 0); // disable

--- a/src/web/WebCustomEntityService.cpp
+++ b/src/web/WebCustomEntityService.cpp
@@ -686,7 +686,7 @@ void WebCustomEntityService::fetch() {
            uint8_t stop       = (entity.offset + len[entity.value_type]) % fetchblock;
            bool    is_fetched = start < fetchblock && stop < fetchblock; // make sure the complete value is a a fetched block
            for (const auto & emsdevice : EMSESP::emsdevices) {
-                if (emsdevice->is_device_id(entity.device_id) && emsdevice->is_fetch(entity.type_id, entity.offset + len[entity.value_type])
+                if (emsdevice->is_device_id(entity.device_id) && emsdevice->is_fetch(entity.type_id)
                    && (is_fetched || entity.value_type == DeviceValueType::STRING)) {
                    needFetch = false;
                    break;
--- a/src/web/WebCustomizationService.cpp
+++ b/src/web/WebCustomizationService.cpp
@@ -54,10 +54,10 @@ void WebCustomization::read(WebCustomization & customizations, JsonObject root)
    JsonArray sensorsJson = root["ts"].to<JsonArray>();
    for (const SensorCustomization & sensor : customizations.sensorCustomizations) {
        JsonObject sensorJson   = sensorsJson.add<JsonObject>();
-        sensorJson["id"]        = (const char *)sensor.id;   // ID of chip
+        sensorJson["id"]        = (const char *)sensor.id;   // ID of dallas temperature sensor chip
        sensorJson["name"]      = (const char *)sensor.name; // n
        sensorJson["offset"]    = sensor.offset;             // o
-        sensorJson["is_system"] = sensor.is_system;          // s for core_voltage, supply_voltage
+        sensorJson["is_system"] = sensor.is_system;          // s for gateway_temperature
    }

    // Analog Sensor customization
--- a/src/web/WebSchedulerService.cpp
+++ b/src/web/WebSchedulerService.cpp
@@ -352,7 +352,6 @@ bool WebSchedulerService::command(const char * name, const std::string & command
    // parse json
    JsonDocument doc;
    if (deserializeJson(doc, cmd) == DeserializationError::Ok) {
-        HTTPClient  * http = new HTTPClient;
        std::string url = doc["url"] | "";
        // for a GET with parameters replace commands with values
        // don't search the complete url, it may contain a devicename in path
@@ -363,40 +362,139 @@ bool WebSchedulerService::command(const char * name, const std::string & command
            commands(s, false);
            url.replace(q + 1, l, s);
        }
-        if (http->begin(url.c_str())) {
-            // add any given headers
-            for (JsonPair p : doc["header"].as<JsonObject>()) {
-                http->addHeader(p.key().c_str(), p.value().as<String>().c_str());
+        std::string value  = doc["value"] | data;   // extract value if its in the command, or take the data
+        std::string method = doc["method"] | "GET"; // default GET
+        commands(value, false);
+        if (value.length()) {
+            method = "POST";
+        }
+        std::string result;
+        int         httpResult = 0;
+#ifndef NO_TLS_SUPPORT
+        if (Helpers::toLower(url.c_str()).starts_with("https://")) {
+            WiFiClient *    basic_client = new WiFiClient;
+            ESP_SSLClient * ssl_client   = new ESP_SSLClient;
+            ssl_client->setInsecure(); // with root CA we should set here: ssl_client->setCACert(rootCACert);
+            ssl_client->setBufferSizes(1024, 1024);
+            ssl_client->setSessionTimeout(120); // Set the timeout in seconds (>=120 seconds)
+            url.replace(0, 8, "");
+            std::string host  = url;
+            auto        index = url.find_first_of('/');
+            if (index != std::string::npos) {
+                host = url.substr(0, index);
+                url.replace(0, index, "");
            }
-            std::string value  = doc["value"] | data.c_str(); // extract value if its in the command, or take the data
-            std::string method = doc["method"] | "GET";       // default GET
-
-            commands(value, false);
-            // if there is data, force a POST
-            int httpResult = 0;
-            if (value.length() || method == "post") { // we have all lowercase
-                if (value.find_first_of('{') != std::string::npos) {
-                    http->addHeader(asyncsrv::T_Content_Type, asyncsrv::T_application_json, false); // auto-set to JSON
+            // EMSESP::logger().debug("Host: %s, URL: %s", host.c_str(), url.c_str());
+            ssl_client->setClient(basic_client);
+            if (ssl_client->connect(host.c_str(), 443)) {
+                if (value.length() || Helpers::toLower(method) == "post") {
+                    // EMSESP::logger().debug("POST %s HTTP/1.1", url.c_str());
+                    ssl_client->print("POST ");
+                    ssl_client->print(url.c_str());
+                    ssl_client->println(" HTTP/1.1");
+                    ssl_client->print("Host: ");
+                    ssl_client->println(host.c_str());
+                    bool content_set = false;
+                    for (JsonPair p : doc["header"].as<JsonObject>()) {
+                        content_set |= (emsesp::Helpers::toLower(p.key().c_str()) == "content-type");
+                        ssl_client->print(p.key().c_str());
+                        ssl_client->print(": ");
+                        ssl_client->println(p.value().as<std::string>().c_str());
+                    }
+                    if (!content_set) {
+                        ssl_client->print("Content-Type: ");
+                        if (value.starts_with('{')) {
+                            ssl_client->println(asyncsrv::T_application_json);
+                        } else {
+                            ssl_client->println(asyncsrv::T_text_plain);
+                        }
+                    }
+                    ssl_client->print("Content-Length: ");
+                    ssl_client->println(value.length());
+                    ssl_client->println("Connection: close");
+                    ssl_client->print("\r\n");
+                    ssl_client->print(value.c_str());
+                } else {
+                    // EMSESP::logger().debug("GET %s HTTP/1.1", url.c_str());
+                    ssl_client->print("GET ");
+                    ssl_client->print(url.c_str());
+                    ssl_client->println(" HTTP/1.1");
+                    ssl_client->print("Host: ");
+                    ssl_client->println(host.c_str());
+                    for (JsonPair p : doc["header"].as<JsonObject>()) {
+                        ssl_client->print(p.key().c_str());
+                        ssl_client->print(": ");
+                        ssl_client->println(p.value().as<std::string>().c_str());
+                    }
+                    ssl_client->println("Connection: close");
+                }
+                auto ms = millis();
+                while (ssl_client->connected() && !ssl_client->available() && millis() - ms < 3000) {
+                    delay(0);
+                }
+                while (ssl_client->available()) {
+                    result += (char)ssl_client->read();
+                }
+                ssl_client->stop();
+                // EMSESP::logger().debug("HTTPS response: %s", result.c_str());
+                index = result.find_first_of(' ');
+                if (index != std::string::npos) {
+                    httpResult = stoi(result.substr(index + 1, 3));
+                    // EMSESP::logger().debug("HTTPS code: %i", httpResult);
+                }
+                index = result.find("\r\n\r\n");
+                if (index != std::string::npos) {
+                    result.replace(0, index + 4, "");
+                    // EMSESP::logger().debug("HTTPS response: %s", result.c_str());
                }
-                httpResult = http->POST(value.c_str());
            } else {
-                httpResult = http->GET(); // normal GET
+                EMSESP::logger().warning("HTTPS connection failed");
            }
-
-            http->end();
-            delete http;
-
+            delete ssl_client;
+            delete basic_client;
            // check HTTP return code
            if (httpResult != 200) {
-                char error[100];
-                snprintf(error, sizeof(error), "Schedule %s: URL command failed with http code %d", name, httpResult);
-                EMSESP::logger().warning(error);
+                EMSESP::logger().warning("Schedule '%s': URL command failed with http code %d", name, httpResult);
+                return false;
+            }
+            return true;
+        } else
+#endif
+            if (Helpers::toLower(url.c_str()).starts_with("http://")) {
+            HTTPClient * http = new HTTPClient;
+            if (http->begin(url.c_str())) {
+                bool content_set = false;
+                for (JsonPair p : doc["header"].as<JsonObject>()) {
+                    http->addHeader(p.key().c_str(), p.value().as<std::string>().c_str());
+                    content_set |= p.key() == "content-type";
+                }
+                // if there is data, force a POST
+                if (Helpers::toLower(method) == "post") { // we have all lowercase
+                    if (!content_set) {
+                        // http->addHeader("Content-Type", value.find_first_of('{') != std::string::npos ? "application/json" : "text/plain");
+                        if (value.starts_with('{')) {
+                            http->addHeader(asyncsrv::T_Content_Type, asyncsrv::T_application_json, false); // auto-set to JSON
+                        } else {
+                            http->addHeader(asyncsrv::T_Content_Type, asyncsrv::T_text_plain, false); // auto-set to JSON
+                        }
+                    }
+                    httpResult = http->POST(value.c_str());
+                } else {
+                    httpResult = http->GET(); // normal GET
+                    if (httpResult > 0) {
+                        result = http->getString().c_str();
+                    }
+                }
+            }
+            http->end();
+            delete http;
+            // check HTTP return code
+            if (httpResult != 200) {
+                EMSESP::logger().warning("Schedule '%s': URL command failed with http code %d", name, httpResult);
                return false;
            }
 #if defined(EMSESP_DEBUG)
-            char msg[100];
-            snprintf(msg, sizeof(msg), "Schedule %s: URL command successful with http code %d", name, httpResult);
-            EMSESP::logger().debug(msg);
+            EMSESP::logger().debug("Schedule %s: URL '%s' command successful with http code %d", name, url.c_str(), httpResult);
 #endif
            return true;
        }
--- a/src/web/WebSettingsService.cpp
+++ b/src/web/WebSettingsService.cpp
@@ -83,6 +83,20 @@ void WebSettings::read(WebSettings & settings, JsonObject root) {
    root["modbus_max_clients"]    = settings.modbus_max_clients;
    root["modbus_timeout"]        = settings.modbus_timeout;
    root["developer_mode"]        = settings.developer_mode;
+#ifndef NO_TLS_SUPPORT
+    root["email_enabled"] = settings.email_enabled;
+#else
+    root["email_enabled"] = false;
+#endif
+    root["email_ssl"]      = settings.email_ssl;
+    root["email_starttls"] = settings.email_starttls;
+    root["email_server"]   = settings.email_server;
+    root["email_port"]     = settings.email_port;
+    root["email_login"]    = settings.email_login;
+    root["email_pass"]     = settings.email_pass;
+    root["email_sender"]   = settings.email_sender;
+    root["email_recp"]     = settings.email_recp;
+    root["email_subject"]  = settings.email_subject;
 }

 // call on initialization and also when settings are updated/saved via web or console
@@ -242,14 +256,10 @@ StateUpdateResult WebSettings::update(JsonObject root, WebSettings & settings) {
    check_flag(original_settings.low_clock, settings.low_clock, ChangeFlags::RESTART);

    // Modbus settings
-    settings.modbus_enabled = root["modbus_enabled"] | EMSESP_DEFAULT_MODBUS_ENABLED;
-    check_flag(original_settings.modbus_enabled, settings.modbus_enabled, ChangeFlags::RESTART);
-    settings.modbus_port = root["modbus_port"] | EMSESP_DEFAULT_MODBUS_PORT;
-    check_flag(original_settings.modbus_port, settings.modbus_port, ChangeFlags::RESTART);
+    settings.modbus_enabled     = root["modbus_enabled"] | EMSESP_DEFAULT_MODBUS_ENABLED;
+    settings.modbus_port        = root["modbus_port"] | EMSESP_DEFAULT_MODBUS_PORT;
    settings.modbus_max_clients = root["modbus_max_clients"] | EMSESP_DEFAULT_MODBUS_MAX_CLIENTS;
-    check_flag(original_settings.modbus_max_clients, settings.modbus_max_clients, ChangeFlags::RESTART);
-    settings.modbus_timeout = root["modbus_timeout"] | EMSESP_DEFAULT_MODBUS_TIMEOUT;
-    check_flag(original_settings.modbus_timeout, settings.modbus_timeout, ChangeFlags::RESTART);
+    settings.modbus_timeout     = root["modbus_timeout"] | EMSESP_DEFAULT_MODBUS_TIMEOUT;

    //
    // these may need mqtt restart to rebuild HA discovery topics
@@ -300,6 +310,20 @@ StateUpdateResult WebSettings::update(JsonObject root, WebSettings & settings) {
    settings.weblog_level   = root["weblog_level"] | EMSESP_DEFAULT_WEBLOG_LEVEL;
    settings.weblog_compact = root["weblog_compact"] | EMSESP_DEFAULT_WEBLOG_COMPACT;

+    settings.email_enabled  = root["email_enabled"] | FACTORY_EMAIL_ENABLE;
+    settings.email_ssl      = root["email_ssl"] | FACTORY_EMAIL_SSL;
+    settings.email_starttls = root["email_starttls"] | FACTORY_EMAIL_STARTTLS;
+    settings.email_server   = root["email_server"] | FACTORY_EMAIL_SERVER;
+    settings.email_port     = root["email_port"] | FACTORY_EMAIL_PORT;
+    settings.email_login    = root["email_login"] | FACTORY_EMAIL_LOGIN;
+    settings.email_pass     = root["email_pass"] | FACTORY_EMAIL_PASSWORD;
+    settings.email_sender   = root["email_sender"] | FACTORY_EMAIL_FROM;
+    settings.email_recp     = root["email_recp"] | FACTORY_EMAIL_TO;
+    settings.email_subject  = root["email_subject"] | FACTORY_EMAIL_SUBJECT;
+
+    if (settings.email_ssl && settings.email_starttls) {
+        settings.email_ssl = false;
+    }
    // if no psram limit weblog buffer to 25 messages
    if (EMSESP::system_.PSram() > 0) {
        settings.weblog_buffer = root["weblog_buffer"] | EMSESP_DEFAULT_WEBLOG_BUFFER;
@@ -458,23 +482,14 @@ void WebSettings::set_board_profile(WebSettings & settings) {
 #if CONFIG_IDF_TARGET_ESP32
        // check for no PSRAM, could be a E32 or S32?
        if (!ESP.getPsramSize()) {
-#if ESP_ARDUINO_VERSION_MAJOR < 3
-            if (ETH.begin(1, 16, 23, 18, ETH_PHY_LAN8720, ETH_CLOCK_GPIO0_IN)) {
-#else
            if (ETH.begin(ETH_PHY_LAN8720, 1, 23, 18, 16, ETH_CLOCK_GPIO0_IN)) {
-#endif
                settings.board_profile = "E32"; // Ethernet without PSRAM
            } else {
                settings.board_profile = "S32"; // ESP32 standard WiFi without PSRAM
            }
        } else {
-// check for boards with PSRAM, could be a E32V2 otherwise default back to the S32
-#if ESP_ARDUINO_VERSION_MAJOR < 3
-            if (ETH.begin(0, 15, 23, 18, ETH_PHY_LAN8720, ETH_CLOCK_GPIO0_OUT)) {
-#else
+            // check for boards with PSRAM, could be a E32V2 otherwise default back to the S32
            if (ETH.begin(ETH_PHY_LAN8720, 0, 23, 18, 15, ETH_CLOCK_GPIO0_OUT)) {
-#endif
-
                if (analogReadMilliVolts(39) > 700) {   // core voltage > 2.6V
                    settings.board_profile = "E32V2_2"; // Ethernet, PSRAM, internal sensors
                } else {
--- a/src/web/WebSettingsService.h
+++ b/src/web/WebSettingsService.h
@@ -26,6 +26,36 @@
 #define EMSESP_SETTINGS_SERVICE_PATH "/rest/settings"
 #define EMSESP_BOARD_PROFILE_SERVICE_PATH "/rest/boardProfile"

+#ifndef FACTORY_EMAIL_ENABLE
+#define FACTORY_EMAIL_ENABLE false
+#endif
+#ifndef FACTORY_EMAIL_SSL
+#define FACTORY_EMAIL_SSL false
+#endif
+#ifndef FACTORY_EMAIL_STARTTLS
+#define FACTORY_EMAIL_STARTTLS true
+#endif
+#ifndef FACTORY_EMAIL_PORT
+#define FACTORY_EMAIL_PORT 587
+#endif
+#ifndef FACTORY_EMAIL_SERVER
+#define FACTORY_EMAIL_SERVER "smtp.example.net"
+#endif
+#ifndef FACTORY_EMAIL_LOGIN
+#define FACTORY_EMAIL_LOGIN ""
+#endif
+#ifndef FACTORY_EMAIL_PASSWORD
+#define FACTORY_EMAIL_PASSWORD ""
+#endif
+#ifndef FACTORY_EMAIL_FROM
+#define FACTORY_EMAIL_FROM "ems-esp@example.net"
+#endif
+#ifndef FACTORY_EMAIL_TO
+#define FACTORY_EMAIL_TO ""
+#endif
+#ifndef FACTORY_EMAIL_SUBJECT
+#define FACTORY_EMAIL_SUBJECT "ems-esp notification"
+#endif
 namespace emsesp {

 class WebSettings {
@@ -77,6 +107,16 @@ class WebSettings {
    uint16_t modbus_port;
    uint8_t  modbus_max_clients;
    uint32_t modbus_timeout;
+    bool     email_enabled;
+    bool     email_ssl;
+    bool     email_starttls;
+    String   email_server;
+    uint16_t email_port;
+    String   email_login;
+    String   email_pass;
+    String   email_sender;
+    String   email_recp;
+    String   email_subject;

    uint8_t phy_type;
    int8_t  eth_power; // -1 means disabled
--- a/src/web/WebStatusService.cpp
+++ b/src/web/WebStatusService.cpp
@@ -296,6 +296,10 @@ uint8_t WebStatusService::upgradeImportantMessages(std::string & version) {

    version::EMSESP_Version current_version(current_version_s); // get current version

+    if (latest_version > current_version && current_version.minor() < latest_version.minor()) {
+        return 0; // if it's just a minor version upgrade return 0
+    }
+
    if ((current_version.major() <= 3 && current_version.minor() <= 8) && (latest_version.major() == 3 && latest_version.minor() == 9)) {
        return 1; // if moving from below 3.8.x to 3.9.x return 1
    }
@@ -304,10 +308,6 @@ uint8_t WebStatusService::upgradeImportantMessages(std::string & version) {
        return 2; // if it's a major version upgrade return 2
    }

-    if (latest_version > current_version && current_version.minor() < latest_version.minor()) {
-        return 0; // if it's just a minor version upgrade return 0
-    }
-
    return 0; // if it's not a valid version upgrade return 0
 }
Author	SHA1	Message	Date
proddy	1e8013100c	rename build-webUI with build_webUI	2026-04-20 15:46:54 +02:00
proddy	62c8f55568	package update (vite fix)	2026-04-20 15:46:39 +02:00
Proddy	c40d828749	Merge pull request #3031 from proddy/core3 build_webUI -> build-webUI	2026-04-19 19:15:28 +02:00
proddy	84ad08887a	build_webUI -> build-webUI	2026-04-19 19:13:15 +02:00
Proddy	37107d8500	Merge pull request #3029 from proddy/core3 sync memory optimizations from dev-16 to core3	2026-04-19 15:15:14 +02:00
proddy	dde6a8c5db	close dialog after download	2026-04-19 15:10:51 +02:00
proddy	e2750b8572	don't show system backup as its the same page!	2026-04-19 15:10:41 +02:00
proddy	acd23925b5	download text changes	2026-04-19 15:10:20 +02:00
proddy	b0db054e11	fix firmware install date (was using UTC as TZ not initialised)	2026-04-19 14:17:31 +02:00
proddy	51cea8e757	no need to call ntp on begin as its in the loop	2026-04-19 13:15:11 +02:00
proddy	bbb086ea41	add back NTP	2026-04-19 13:14:54 +02:00
proddy	539e6ed080	remove lazy loading	2026-04-19 10:17:10 +02:00
proddy	1d33a26318	fix dns name being set to "tasmota"	2026-04-18 19:42:45 +02:00
proddy	86a20fc97a	sync with dev-16	2026-04-18 18:54:33 +02:00
proddy	d6e00c4534	UART_FIFO_LEN is deprecated	2026-04-18 18:50:08 +02:00
Proddy	a813d38108	Merge pull request #3025 from MichaelDvP/core3 Core3	2026-04-17 15:44:51 +02:00
MichaelDvP	685a49c212	Merge branch 'dev' into core3, formatting, add back sendmail settings	2026-04-17 12:28:41 +02:00
Proddy	2c8eb534af	Merge pull request #3022 from proddy/core3 fix merge errors	2026-04-16 08:46:06 +02:00
proddy	5210fab4cb	switch to C++20 for string find commands	2026-04-16 08:45:07 +02:00
proddy	49787d27f1	add missing code lost in merge	2026-04-16 08:44:55 +02:00
proddy	dfe7b46461	remove unused http	2026-04-16 08:44:44 +02:00
Proddy	f8257de0dd	Merge pull request #3009 from MichaelDvP/core3 https client for scheduler/shuntingYard	2026-04-15 21:34:03 +02:00
Proddy	3b3ecc9f1d	Merge branch 'core3' into core3	2026-04-15 21:33:27 +02:00
proddy	84105acf5d	3.9.0-dev.0	2026-04-15 20:48:11 +02:00
proddy	def5173692	fix merge issues	2026-04-15 20:37:33 +02:00
proddy	6b31fef1af	build on mac osx	2026-04-15 20:37:27 +02:00
Proddy	c9c059ca65	Merge pull request #3020 from proddy/core3 sync with dev	2026-04-15 09:26:32 +02:00
proddy	4d3b31e5a1	sync with dev	2026-04-15 09:25:38 +02:00
MichaelDvP	51d90095aa	https client for scheduler/shuntingYard	2026-04-04 11:39:43 +02:00
Proddy	16c0370443	Merge pull request #3005 from proddy/core3 Core3 updates	2026-03-30 23:25:22 +02:00
proddy	67bb38dcf4	updated test data	2026-03-30 23:24:35 +02:00
proddy	049231a36e	minor text changes	2026-03-30 23:15:18 +02:00
proddy	349d6b7375	package update	2026-03-30 23:15:07 +02:00
proddy	b72b368d3c	ArduinoJson @ 7.4.3	2026-03-30 23:15:00 +02:00
proddy	7f9fd44a02	C14	2026-03-30 21:27:26 +02:00
proddy	a400c5974c	comment change	2026-03-30 21:09:59 +02:00
proddy	afca995fe5	remove poll check	2026-03-30 21:06:08 +02:00
proddy	81504fedc5	package update	2026-03-30 21:05:55 +02:00
proddy	3da3345683	fix poll_match_count	2026-03-29 16:30:38 +02:00
Proddy	c6c2889306	Merge branch 'dev' into core3	2026-03-29 15:58:45 +02:00
proddy	b60f0d260a	updated tests	2026-03-29 15:55:02 +02:00
proddy	cd750e4777	text change	2026-03-29 15:44:39 +02:00
proddy	4e5d503b35	remove mbedtls, update ArduinoJson	2026-03-29 15:44:27 +02:00
proddy	bd09e17e49	3.8.2-dev.C13	2026-03-29 15:43:44 +02:00
proddy	835eb743bb	backup/restore #3002	2026-03-29 15:43:35 +02:00
proddy	69a129d80e	move NVS initisalisation higher, add check for poll_id == bus ID	2026-03-29 15:43:03 +02:00
proddy	434bf483fd	added comment	2026-03-29 15:41:57 +02:00
proddy	2b8e170b40	text changes	2026-03-29 15:41:46 +02:00
proddy	dc9b95f3e7	updated to prevent warning on WiFI mode (shown in debug mode)	2026-03-29 15:41:23 +02:00
proddy	1616b0da0a	package update	2026-03-29 15:41:03 +02:00
proddy	91c457b22b	don't show EMS bus error on Dashboard, only devices	2026-03-29 15:40:40 +02:00
proddy	70c60647c7	refresh changed from 3 to 5 seconds	2026-03-29 15:40:19 +02:00
Proddy	c0bea66d27	Merge pull request #2996 from MichaelDvP/core3	2026-03-22 10:12:08 +01:00
MichaelDvP	ed7cc078ed	fix testdata	2026-03-22 09:53:21 +01:00
Proddy	60b7d6d795	Merge pull request #2995 from MichaelDvP/core3 Core3 updates, adapt to c6 and c3 chips	2026-03-21 18:02:49 +01:00
MichaelDvP	947f29cca0	Merge branch 'core3' of https://github.com/emsesp/EMS-ESP32 into core3	2026-03-21 16:47:05 +01:00
MichaelDvP	d2a13ec0da	core3 adaptions for c3 and c6, compiles for all chips	2026-03-21 16:23:07 +01:00
proddy	cc39ba409e	package update	2026-03-21 15:49:14 +01:00
MichaelDvP	ac9db6256e	Merge branch 'dev' into core3	2026-03-21 11:19:05 +01:00
MichaelDvP	096f628d97	Merge branch 'core3' of https://github.com/emsesp/EMS-ESP32 into core3	2026-03-21 11:02:41 +01:00
proddy	22312812bb	system backup	2026-03-20 17:14:58 +01:00
MichaelDvP	3584975acb	env: c6	2026-03-19 16:43:18 +01:00
MichaelDvP	30b9ca4e6c	Merge branch 'core3' of https://github.com/emsesp/EMS-ESP32 into core3	2026-03-19 16:41:21 +01:00
MichaelDvP	7c6ff01ebe	reset reason, uart adapt for C6	2026-03-19 16:39:27 +01:00
proddy	a54edcaf5b	formatting	2026-03-18 20:51:40 +01:00
proddy	e446954844	#2971	2026-03-18 20:45:36 +01:00
proddy	4a2d0d6787	package update	2026-03-18 20:35:55 +01:00
proddy	9725314135	Platform 2026.03.50 Tasmota Arduino Core 3.3.7 based on IDF 5.5.3.260313 and ESP32Async/ESPAsyncWebServer @ 3.10.3	2026-03-18 20:18:59 +01:00
MichaelDvP	e610f0d57f	Merge branch 'core3' of https://github.com/emsesp/EMS-ESP32 into core3	2026-03-18 14:21:59 +01:00
MichaelDvP	8244af2940	Merge branch 'dev' into core3, fix #2988	2026-03-18 11:47:16 +01:00
proddy	40f371d23b	remove check for downloadOnly	2026-03-17 22:01:38 +01:00
proddy	817b791e59	remove flto	2026-03-17 21:47:12 +01:00
proddy	25a7aac360	lint warning fix	2026-03-17 21:47:01 +01:00
proddy	37115a174d	show size of firmware not partition	2026-03-17 21:46:51 +01:00
proddy	1397f81fd0	add C in version so we know its Core	2026-03-17 21:46:27 +01:00
proddy	56365cb403	formatting	2026-03-17 21:46:15 +01:00
proddy	dfd245ee7b	rename common.h	2026-03-17 21:45:12 +01:00
proddy	9c81e4b34d	optimize for vite v8	2026-03-17 21:44:38 +01:00
proddy	67676df131	package update	2026-03-17 21:44:29 +01:00
proddy	a73b129596	update vite v8	2026-03-17 21:44:17 +01:00
Proddy	4600d886b5	Merge pull request #2986 from MichaelDvP/core3 update Core3, change TLS library	2026-03-17 20:27:45 +01:00
MichaelDvP	0fe45a2405	use ESP_SSLClient for mqtt, add sendmail command (using readymail)	2026-03-17 18:53:37 +01:00
MichaelDvP	db87213242	Merge branch 'dev' into core3	2026-03-17 10:19:26 +01:00
MichaelDvP	5c3c010d5a	Merge branch 'dev' into core3	2026-03-16 14:02:02 +01:00
MichaelDvP	c804cedd7a	update changelog	2026-03-16 14:01:45 +01:00
MichaelDvP	aa30ca99bf	update core	2026-03-15 21:41:18 +01:00
MichaelDvP	c0ca9d1069	update pkg	2026-03-15 16:13:50 +01:00
MichaelDvP	5e79e1d57f	more messages on network connect	2026-03-15 16:13:21 +01:00
MichaelDvP	8c732f9f1e	allow modbus start/stop without reboot	2026-03-15 16:12:50 +01:00
MichaelDvP	5e94c2f636	Merge branch 'dev' into core3	2026-03-15 16:11:36 +01:00
MichaelDvP	64e5d29996	fix typo in HA-climate creation	2026-02-17 09:23:20 +01:00
Proddy	b320d8ded2	Merge pull request #2963 from MichaelDvP/core3 Core3 network fixes	2026-02-16 18:12:33 +01:00
MichaelDvP	0be1b20996	statemachine for network connection replaces onEvent	2026-02-16 10:37:28 +01:00
MichaelDvP	6c55460622	Merge branch 'dev' into core3	2026-02-16 08:34:23 +01:00
MichaelDvP	d627404dc2	skip onEvent for AP, MQTT, NTP	2026-02-16 07:47:13 +01:00
proddy	f317123c26	fix standalone	2026-02-15 15:27:11 +01:00
proddy	e4df1887b0	remove	2026-02-15 14:16:55 +01:00
proddy	34142c3e85	use Tasmota everywhere	2026-02-15 14:16:50 +01:00
proddy	6e7f8bdf02	add -DNO_TLS_SUPPORT	2026-02-15 14:16:27 +01:00
proddy	3dd9fcfb58	update	2026-02-15 14:16:04 +01:00
proddy	35e2954b8b	fix lint errors	2026-02-15 14:15:55 +01:00
proddy	59aa63db0f	package update	2026-02-15 14:15:43 +01:00
proddy	7a41a190f8	support s3	2026-02-15 14:15:13 +01:00
proddy	6741232450	WIP: ESP-IDF Core 3 migration - mbedtls SSL, module library, board configs, MQTT and network updates	2026-02-15 13:53:13 +01:00