OT: mail server

From: Bob Lafleur <bob_lafleur_at_technologist.com>
Date: Thu Apr 8 09:14:54 2004

> that way once it is running, I can just leave it running and not have to
worry about regular updates

If one of your goals is to eradicate as much junk as you can, then whatever
system you use, at first it will probably do a good job. But over time, the
junk senders will keep finding new ways of getting through the content
filters. So you'll have to periodically update your filters and/or rules to
handle the new spamming methods.

Your best bet is to use something that works with the various "blacklists",
such as spamcop. Those are always kept current of known spammers, and if
your MTA checks against those, you'll filter a major amount of junk right
off the bat, and since the blacklist checks are realtime, you won't have to
periodically update things. I use the blacklists as my first line of
defense, and they catch most of the garbage. If you want to get anal about
trying to reject as much as possible, then the header_checks and body_checks
of postfix, along with a content filter system such as amavisd-new and
spamassassin help. But the blacklists catch the bulk of it (in my setup,
anyway).

   - Bob
Received on Thu Apr 08 2004 - 09:14:54 BST