Gmail node with HTML send option has false requirement

Hey!

So with the new version of n8n, you are able to send HTML via the Gmail Node. However the HTML is meant to be an option instead of the plain text option. You can't have both. However if you remove the contents of the "message" field in the UI/JSON then the flow won't save or work.

Whatever you put in the message field doesn't get sent, but the node won't let you execute it unless you fill it out. This is most clearly a bug.

An example flow can be found here:

{
  "name": "Test Email Flow",
  "nodes": [
    {
      "parameters": {},
      "name": "Start",
      "type": "n8n-nodes-base.start",
      "typeVersion": 1,
      "position": [
        520,
        300
      ]
    },
    {
      "parameters": {
        "resource": "message",
        "subject": "Testing",
        "includeHtml": true,
        "htmlMessage": "<!DOCTYPE html>\n<html>\n<body>\n  \n  <h1> Some Email Title </h1>\n  \n</body>\n</html>",
        "toList": [
          "your_email@gmail.com"
        ],
        "additionalFields": {}
      },
      "name": "Gmail",
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 1,
      "position": [
        280,
        240
      ],
      "credentials": {
        "gmailOAuth2": "Some Credentials"
      }
    }
  ],
  "connections": {},
  "active": false,
  "settings": {
    "saveManualExecutions": true
  },
  "id": "2"
}

The ideal behaviour would simply be that the UI message field gets removed when the HTML option is selected

n8n-io / n8n

Gmail node with HTML send option has false requirement #1326