From: Ladar Levison (Ladar.Levisonimaginesolutions.com)
Date: Tue Aug 03 2004 - 15:41:55 CDT

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Rodney --

I run a free e-mail site, (www.nerdshack.com), and I initially tried to
get it working using DSPAM. Unfortunately, the problem with DSPAM is
that it is VERY difficult to configure for sitewide installations. The
tools that come with DSPAM are geared towards filtering messages through
procmail, which in large installations, is very inefficient.

The result was that in about 1/10th the time I spent trying to get DSPAM
working, I was able to get amavisd-new pumping e-mail through SA. The
downside of course is that SA has a really high misclassification rate.

There is one big advantage to DSPAM, (besides its long-term accuracy),
in that they publish a very good API. I've started working on my own
version of amavisd-new (written in C), that pumps messages through DSPAM
and ClamAV. My initial guesstimations show that my C version, with DSPAM
is about 10 times faster than amavisd-new. This is largely because I cut
perl out of the equation. DSPAM, and ClamAV are both written in C, and
very, very fast when used properly. Interfacing with their API's
directly, I was able to get those speed gains.

My hope is that by September my code will be mature enough to deploy on
my e-mail site.

-- L~

------------------------------

Date: Tue, 03 Aug 2004 07:48:57 +0000
From: "rodney thompson" <rodneytghotmail.com>
Subject: Postfix and SA or DSPAM?

I have been reading up on SA and DSPAM and I'd like to know hear some
impartial feedback from people on this list. I don't want to start an
off
topic religious war, but I'd like to hear what other Postfix admins use
and
their experiences.

So far here's what I have come up with-

DSPAM - More accurate
DSPAM - Very nice web based admin tool

SA - Alot more people using it (more docs etc)
SA - More Postfix users using it

Thankyou
TG

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