when I remember the RFC correctly, mailserver’s have to use their hostname (that is also their reverse DNS for that IP) in their HELO-message.
As my server ha a quite technical, long and hard-to-remember hostname, I don’t want to use that for the WebUI for the users (and - if possible - for the IMAP/SMTP-setting in their clients).
Unfortunately, it is AFAIR only possible to set a general
MAILCOW_HOSTNAME in the mailcow.conf.
Is it possible, to configure mailcow in a way, that the “nice” URL is used for all user-facing stuff?
I tried it already, and is seems to work with a reverse proxy in front, but only SOGo seems to keep redirecting to the crude hostname. So is there any setting in SOGo where I can hardcode the Domain?