This is a simple GitHub Action for sending emails via these services:

• Postmark
• Resend

It uses the Python stdlib exclusively, there are no other dependencies - send_email.py is the script.

Required environment variables:

• POSTMARK_API_TOKEN or RESEND_API_KEY - Depending on the provider you're using
• EMAIL_FROM - Email "From" address
• EMAIL_TO - Email "To" address

Values used in the workflow:

• provider - Either postmark or resend
• subject - The email subject
• body_text and/or body_html - The email body (at least one required)

Add a step to your Actions code like this:

- uses: case/actions-email@v1
  env:
    POSTMARK_API_TOKEN: ${{ secrets.POSTMARK_API_TOKEN }} # If using Postmark
    RESEND_API_KEY: ${{ secrets.RESEND_API_KEY }} # If using Resend
    EMAIL_FROM: ${{ secrets.EMAIL_FROM }}
    EMAIL_TO: ${{ secrets.EMAIL_TO }}
  with:
    provider: resend # Or "postmark"
    subject: "Build completed"
    body_html: "<h1>Success!</h1>"

To test this locally, make sure you have the RESEND_API_KEY env var set. Then run:

$ python3 send_email.py --test --from "[email protected]" --to "[email protected]"