Is there any way that I can change a user's From: address to something different than the user's main mail address. For example, change the emails From: address of user@mydomain.com to user@someotherdomain.com. You can do this in exchange 2007 really easy, but I do not see a place for it in Zentyal mail configuration.
To me, this deserves another new post...
My view on this topic is that:
- sender mail address is configured at client level.
- As described in RFC822, multiple header fields can contain information about sender (wee below)
- in order to prevent spoofing, some modern mail servers implement masquerading that is rewriting sender address with real sender address. This requires ESMTP.
This been clarified, the tricky point is to understand what you current mail client is.
- With my Thunderbird client, I'm dealing with multiple mail addresses and swing from one to the other (configured at Thunderbird level)
- When using webmail (RoundCube), I had to configured this different identities in RoundCube
- I can't comment about Zarafa that I'm not using but you should have a look there.
Extract from RFC822:
originator = authentic ; authenticated addr [ "Reply-To" ":" 1#address] )
authentic = "From" ":" mailbox ; Single author
/ ( "Sender" ":" mailbox ; Actual submittor
"From" ":" 1#mailbox) ; Multiple authors ; or not sender