[phoenix]

Originally Posted by KaiW

I tried to change the reply-to address in the user's mailbox settings, but that didn't do it. (Can someone explain to me, what this reply-to address is used for? The Documentation is not very specific about it.)

That's the address an email gets sent to when someone hits the 'reply' on their client.

Originally Posted by KaiW

I could change the 'from' address by using the zmprov tool
as stated in Changing domains and username .

But is there a better way to do it?

Kai

Better in what sense? Using zmprov is the way to do it, don't forget the warning in that thread about other MTAs maybe rejecting the mail.