Im trying to map my email address to avoid people trying to log into my server with the same email prefix. For example, my username is JoeSmith but I would like my email address to be jsmith@domain.com. Easy enough, but it only works on inbound email.... so jsmith@domain.com gets mapped correctly to the joesmith account, but when joe smith sends out an email address, it appears like joesmith@domain.com which completly defeats the purpose.

My setup is:
Postfix-Procmail-Fetchmail-SpamAssassin-squirrelmail-Courier IMAP

Any suggestions would be greatly appreciated
Thank you,
The GNUbie

What you want to do is to make use of address rewriting. You should read http://www.postfix.org/rewrite.html

I think thats more for domains and not so much for outbound usernames

You can rewrite user@domain.com to otheruser@domain.com.
Isn't that what you are looking for ?

Hi,

Can you describe your postfix setup a bit. Like how are you changing your address in the first place. Are you using canonical_maps. If so... try reversing the process by using virtual_alias_maps.

Hope this helps

Regards