postfix virtual domains problem

[Arthur Stephens]

Running Mailscanner 4.69.9-3 with Postfix version 2.3.6 on Redhat Linux 
Fedora 7
All of my virtual Domains are being ignored the email is being delivered 
to the actual mailbox on the server.
Example sales at domain.com and sales at otherdomain.com are all going to 
sales mailbox.
Help!

-- 
Arthur Stephens
Senior Sales Technician
Ptera Wireless Internet Service
PO Box 135
Liberty Lake, WA 99019
509-927-7837
http://www.ptera.net