HI, can you provide your extension configuration? Are you using sendgrid, or some other smtp provider?

ah reproduced this, looking into a fix now. Thanks for raising!

In the meantime if you want to downgrade you can alter the URL here, specify the version at the end:

https://console.firebase.google.com/project/_/extensions/install?ref=firebase%[email protected]

Reopening until i release this. After testing I need to make some more changes before we release.

HI, can you provide your extension configuration? Are you using sendgrid, or some other smtp provider?

I using a standard smtp provider (username + passwort) without any OAuth2
Thanks for working on this issue!!

No worries! Plan to get a release out tomorrow fixing this.

For the sake of completeness: this is an example for an email that works fine in version 0.2.0 and that fails due to validation errors in version 0.2.1:

{
  "delivery": {
    "attempts": 1,
    "startTime": "22. April 2025 um 13:26:01 UTC+2",
    "endTime": "22. April 2025 um 13:26:02 UTC+2",
    "error": null,
    "info": {
      "accepted": [
         "[email protected]"
      ],
      "messageId": "<[email protected]>",
      "response": "250 2.0.0 OK <[email protected]> [Hostname=PR3PR05MB6908.eurprd05.prod.outlook.com]",
      "pending": [],
      "rejected": []
    },
    "state": "SUCCESS",
    "leaseExpireTime": null
  },
  "message": {
    "attachments": [
    ],
    "html": null,                             <------- this creates an error
    "text": null                                <------ this creates an error
    "subject": "Bestellbestätigung"
  },
  "template": {
    "data": {
      "address": "Halbenrain 140 Graz",
      "doctorName": "Dr. Andreas",
      "openingHours": "Mo., Mi., Fr. 8:00-12:00Di., Do. 10:30-15:30",
      "orderText": "Some stuff i need",
      "userName": "Pfeiler ",
    },
    "name": "med_order_reply_greimel"
  },
  "to": "[email protected]"
}

shouldn't attachments be an array there?

attachments: An array containing attachment(s); Nodemailer options supported: utf-8 string, custom content type, URL, encoded string, data URI, and pregenerated MIME node (be aware that your email has no access to the cloud server's file system).

from the docs

I mean it may have still failed due to poor validation

Yes it is an array - only the text i copied to this issue was not correct. In my app/database it is always an array.

but also i'm confused, html and text shouldn't be under attachments according to docs. Attachments should abide by the Nodemailer interface:

https://nodemailer.com/message/attachments/

html and text should live under message or in your template doc?

ah - i generated this json based on a screenshot of a firestore database entry with copilot aaaand did not check the result. I'm fixing it.

Reopening again until this is fixed - there are release process issues now, waiting on those to be fixed

triggered release now, closing as complete. If the issue persists somehow then do open a new issue!