My domain DNS is served by the domain registrar.
I am able to send mail successfully from any address with postfix but not from mydomain.com
From this machine - I only want to be able to send mail.
I know it must have something to do with DNS and my domain registrar.
When postfix main.cf configuration has
mydestination = localhost, localhost.localdomain
I am getting:
status=bounced (mail for mydomain.com loops back to myself)
When I add mydomain.com to the mydestination (as suggested on the internet)
mydestination = mydomain.com, localhost, localhost.localdomain
status=bounced (unknown user: )
Now I know I am missing something very obvious here, I just can't figure what that is.