[70500] in North American Network Operators' Group
Re: Barracuda Networks Spam Firewall
daemon@ATHENA.MIT.EDU (Mike Tancsa)
Mon May 17 17:19:30 2004
Date: Mon, 17 May 2004 17:14:33 -0400
To: Joe Boyce <jboyce@shasta.com>
From: Mike Tancsa <mike@sentex.net>
Cc: nanog@merit.edu
In-Reply-To: <1172847777.20040517140033@shasta.com>
Errors-To: owner-nanog-outgoing@merit.edu
At 05:00 PM 17/05/2004, Joe Boyce wrote:
>Not to thread jack or anything, but when I first moved our cluster to
>Spam Assassin, I was disappointed at the amount of messages that would
>get past Spam Assassin at even a low threshold of 2.
>
>I Googled around and found a bunch of rulesets that once installed,
>started tagging those hard to get messages.
Also, use the various RBLs in the scoring. e.g. add 50% of the threshold
score if its on spamcop and 25% for some of the other more aggressive
RBLs. We have a very high and correct hit rate as a result. Our users can
then add white lists for the handful of their contacts that get tagged as
spam since they are using spam friendly ISPs.
---Mike
