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I am having issues with SmarterMail signing emails sent through SMTP relaying. I'm specifically setting up DKIM.
I've done the following:
- The software sending the email is authenticating as a user in the domain
- I've enabled every box I find about mail signing from Protocols through Domain User (enable outgoing mail signing
- Tested sending an email from the web interface (HTML): Successful - received message with DKIM
- Tested sending an email through SMTP: Failed - received message without any signing
I can't find anything about this issue in the documentation or a solution in the online resources. How do I enable mail signing for emails relayed through SMTP?