Postfix/Virtual users

[Bodger]

I have no idea how to fix this.

I have an ISPClient jlbprof, with a site called annex.jlbprof.com, I am not interested in the website, only the mail system.

It is setup like so:

Email Address: julian@jlbprof.com
Username: web2_julian

I probably have something wrong in postfix because when someone from the outside tries to email julian@jlbprof.com they get this in response:

I intend to web and email host for many domain, how come it is rewriting my email to be web2_julian@localhost.localdomain?

Thanx

Julian

-----
This is the Postfix program at host localhost.localdomain.

I'm sorry to have to inform you that your message could not be
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The Postfix program

<web2_julian@localhost.localdomain> (expanded from <julian@jlbprof.com>): mail
for localhost.localdomain loops back to myself



Reporting-MTA: dns; localhost.localdomain
X-Postfix-Queue-ID: 58099B3B58
X-Postfix-Sender: rfc822; julian@sladeshipping.com
Arrival-Date: Sat, 13 May 2006 17:15:47 -0500 (CDT)

Final-Recipient: rfc822; web2_julian@localhost.localdomain
Original-Recipient: rfc822; julian@jlbprof.com
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; mail for localhost.localdomain loops back to myself

[falko]

Diagnostic-Code: X-Postfix; mail for localhost.localdomain loops back to myself
Please add localhost.localdomain to the mydestination line in /etc/postfix/main.cf and restart Postfix.