Hi,
I am currently running 2 mail servers - one for SimpleLogin with a plain postfix using transport maps and relay domains with a Postgre backend, and one for everything else. SimpleLogin uses the Mailcow one as its relay host/smarthost.
Now, I was wondering if I can integrate the SimpleLogin configuration in Mailcow to eliminate maintaining a second (basically only relay) host? SimpleLogin uses a different Postgres database and needs a customized relay domains and transport map in Postfix.