Emailing with Postmark

Hi

I’m trying to set up emailing with Postmark.

I’ve entered my API key. However, test emails from the “Email Templates” are not reaching me. Postmark console did not register any communications.

Also, when I came back to the Email settings screen again, the API key entry has disappeared / blanked out.

Terry

Hello @Terry_Lee

Welcome to our community and thank you for trying out Backendless.

Thanks for your question!

Regarding the API key field in the Email Settings screen – the behavior you observed is expected. For security reasons, Backendless does not display the Postmark API key after you save the settings. Even though the field looks empty when you return to the page, the key is stored on our side and used for sending emails.

As for the issue with test emails not reaching you:

  • Could you please confirm which type of API token you are using — a Server API token or an Account API token? For sending emails via Postmark, a Server API token is required.
  • In your Postmark dashboard, please check whether the “Send Emails” permission is enabled for the token.
  • Also make sure that the sender domain/address is verified in Postmark — otherwise Postmark will reject the request.
  • Your account in Postmark is approved?
  • Are you able to send emails with this token to the same address directly?
  • Check the postmark tab for something like Activity/Outbound.
  • Please provide your Backendless applicationId.
  • Check Backendless logs (Backendless Console -> Manage -> Log Management -> files or Backendless Console -> File Service - logging)
  • Check Backendless Console -> Manage -> App Settings -> email -> Show advanced settings -> SMTP Port with Sending email with SMTP (Ports - 25, 2525, or 587)

Regards,
Volodymyr