Mailscanner gateway using sendmail (are there rules for individual domains)

[Kit Wong]

Hi All

I found this article
http://wiki.mailscanner.info/doku.php?id=documentation:configuration:mta
:sendmail:how_to:setup_a_gateway
I have sendmail and mailscanner on a bluequartz (centos 5). Its working
great. 

I need to be able to use the excellent spam filtering ability of
mailscanner before mail is relayed to an exchange server on a fixed ip
address . I only want to do this for a few domains. Is it possible. The
above article hints that it can be done, but not sure if its domain name
specific or all mail on that server.

Thanks in advanced