I have a central server with postfix, relayhost to my mail provider. I do not want to enter his credentials into all other local systems (satellites), so I want them to use server for relaying.
Let's say my domain is mydomain.de. server sends all mails to the mail provider instead of trying to deliver them locally because I said so in the transport map:
mydomain.de smtp:smtps.udag.de:587
That part works. satellites also send mail to any other E-Mail-address via server. Only if a satellite sends to [email protected], server ignores the transport map and tries to deliver locally.
How could I fix this?