Canonical address vs aliases

[andremta]

What is the difference between a canonical address and an aliases?

[Vladimir]

Canonical address controls the "from" on outgoing mail, and alias is about incoming mail. If your user is timmy@subdomain.corp.org if you set the cannonical address to mr.timmy@corp.org all mail from that user will pretend to come from the cannonical address. You have to make sure if someone replies to that email that the address exists somewhere and redirect the mail back to the user, if that address does not exist, mail to to it will bounce.

An alias is really a whole user alias not just an email alias.

[Eri]

There is a bug related to issue opened here

You may want to vote for it.

[]'s
Eri