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Date: Fri, 14 May 2004 08:40:59 -0300
From: Fernando Schapachnik <fernando@mecon.gov.ar>
To: Patrick Baker <PBaker@outpost.com>
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cc: "'freebsd-security@freebsd.org'" <freebsd-security@freebsd.org>
Subject: Re: How do fix a good solution against spam..
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As everybody is throwing in their favorite anti-spam solutions, here's mine:

http://www.paganini.net/ask/

>From the home page:

ASK takes advantage of the fact that most spammers use invalid or fake "From:"
address in their messages. When a new message arrives and the sender is unknown,
ASK sends a "confirmation message" back, informing the sender that the original
message has been queued, pending confirmation. When the sender confirms (a
simple reply), ASK delivers the original message and adds the sender to a
"whitelist". Further messages from this sender will be immediately delivered. It
is also possible to ignore messages based on specific criteria, like sender's
email, subject and so on. 

This reduced spam in my inbox from houndreds to 0.


Regards.

Fernando.