I've been using the realy.pl for several years now to do content filtering
on imcoming email. This is a perl script that was originally created by
Richard Mallett but I've modified it many times over the years to include
additional logging and DNS/RBL lookups. It's a little slow but seems to be
doing the job. Still I can't help but wonder:

Is anyone else still using this program for content filtering?

Has everyone else moved to a commercial solution? If so, which one is best?

Ed Radza
Paratransit, Inc.