Mail account already exists!

[c0urier]

Hi guys,

I've been searching around the forum but haven't been able to find a thread regarding this subject.
I'm trying to add the mail account abuse@DOMAIN.TLD, it says the mail account already exists, I can confirm it exists just not in the ispCP panel. When I send to the mail there is a configured mail forward to 3 mails addresses which I need to edit.
Does anyone have any hints on why this mail account is not listed in the panel?

If this is needed but I doubt it:
Sys: Linux Debian 5.0 Lenny
ispCP ver: 1.0.6 I've added the patches myself when they came.
Postfix: postfix/lenny uptodate 2.5.5-1.1