I would like to have ONLY 1 mail server, but simulate multiple mail servers with different postfixes. How to deal with that?
Let me give an example:
I’ve got mail.longervision.com running mailcow . I’m NOT installing a 2nd mail.longervisionrobot.com, but would like to be looked on as I’ve got a 2nd mail server running. I can use, say, email@example.com to send and receive Emails on the same mailcow ?
Any documentation for me to follow?