-----Original Message-----
From: asrg-bounces(_at_)ietf(_dot_)org
[mailto:asrg-bounces(_at_)ietf(_dot_)org]On Behalf Of
Laird Breyer
Sent: Sunday, January 09, 2005 6:35 PM
To: asrg(_at_)ietf(_dot_)org
Subject: Re: [Asrg] Please critique my anti-spam system
On Jan 09 2005, Michael Kaplan wrote:
[SNIP]
It depends on your point of view.
Current email lists are worthless since three quarters of spam sent
doesn't reach valid users, of the remaining quarter spam filters
Bounces are used as validators in many cases. The sponsors
buy these lists and they want some deliverability. It's
inevitable that a filter will get some, but that's not the
spammers problem. The method is the spammers problem.
remove another three quarters, and the remaining 1/16th of the
original number competes with all the other spam that made it in an
undifferentiated way. Even then, spammers are forced to change header
contents continually to prevent being easily blacklisted, and must
write catchy content in the subject etc.
You need to differentiate the sponsor
from the spammer. They are *usually two seperate entities
these days. Sponsor BUY$ the spammers services. The sponsor
is the scammer, seller, phisher, or whatever is the trend of
the day.
Let's call this the usual current hiearchy:
SPONSOR
SPAMMER - High speed spam engine
BOT HERDER - Gets the bots
RBL VERIFICATION - Sells the quality measure
BOT ARMY - Sends Spam
LEGIT MTA - Delivers Spam
RECIPIENT - Gets Spam
Oh. And they're all different people or machines. They
can be one, but they also can be many. Think $$.
-M<
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