Qmail and content filtering?

[Qmail]

Hi Folks,

I'm looking for the best place to insert a content filter into the qmail
process for inbound mail. 

I need to filter inbound SMTP for only certain domains by routing them
through an application we wrote. I then need to be able to deliver the
message locally or remotely. 

It looks like in between qmail-queue and qmail-send is the best place.
Opinions?
Lance Ware
WareNet
http://www.ware.net/
949-367-9862
949-348-8668 fax 

Lance Ware (E-mail 2).vcf