full-disclosure - email worms, spam etc etc

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Message-ID: <1064530984.21810.46.camel@tantor.nuclearelephant.com>
From: jonathan at nuclearelephant.com (Jonathan A. Zdziarski)
Subject: email worms, spam etc etc

> Would you know any good DBSBLs?

Be _very_ careful with some of these.  I know one imparticular, Osirus
Relays (relays.osirusoft.com) makes it just about impossible to get off
their list once you're on meaning you risk blackholing legitimate
traffic.  To get off this list, they require you email their scripts
from the server that is blackholed...and their mail server naturally
rejects the message since you're on their list which needless to say, is
[CENSORED] [CENSORED] [CENSORED] stupid or [CENSORED] [CENSORED]
[CENSORED] intentional.

A good alternative might be content filtering (which will also fliter
based on the IP information captured from the Received headers).  The
DSPAM project has been very successful at filtering spams, falsified
emails, and worm emails (such as SoBig.F).  The URL is
http://www.nuclearelephant.com/projects/dspam/