users/assign and catch-all problem

Hi all,
I am trying to configure one of our qmail server to do a catch-all for
one domain except for a few users. Here is what I did:
in control/smtproutes I added:
example.com:[192.168.1.10]
..example.com:[192.168.1.10]
and I added the users that I want to exclude from the catch-all rule in
users/assign:
=vahid:vahid:4006:132:/var/qmail/alias:-:vahid:
I did not forgrt the dot at the end of the file and I ran qmail-newu
too. The alias file for the user in /var/qmail/alias/.qmail-vahid is:
&vahid @ server1.example.com
server1.example.com is in the control/locals file as well.
I know this can be done with qmail (doing it on another machine). What
could be wrong or what am I missing?
What is the test order in which mail is delivered for a user e.g.
local, remote, alias etc.?
Thanks,