From: Rene Bartsch (mlbartschnet.de)
Date: Mon Feb 02 2004 - 08:35:45 CST

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Am Montag, 2. Februar 2004 14:50 schrieb Orlando Andico:
> On Mon, 2 Feb 2004, Orlando Andico wrote:
> ..
>
> > > I just had the idea to implement a tar-pit flag in the Postfix proxy.
> > > If a filter (e.g. spam-filter or virus-filter) detects a malicious mail
> > > and sets the tar-pit flag for a connection, Postfix would keep the
> > > SMTP-connection for a time specified in TAR_PIT_TIMEOUT in smtpd.conf.
> >
> > it will have the effect of tying up an smtpd process for a long time. i
>
> spoke too soon.. yes, passing the descriptor to another tarpit daemon
> would work (not eat up smtpd's). but you would eventually run out of
> resources due to the tarpit daemon also.. them spammers are nothing if not
> believers in brute-force approaches.
>

The tarpit deamon could have resource limits. If we all use tar pits, we'd
create a huge DoS attack against the spammers - which even would be legal as
the spammers cause it themself.

This is the only way to keep email communication alive. Currently 80% of my
incoming mails are spam (SpamAssissin filtered out 3700 spam mails from ONE
of my email accounts in 10 month). And the tar pit is the only way I see to
throw the spammers out of business before they throw us users and providers
out of business. Just consider the jamming and the costs of traffic they
cause! Me and a lot of other users even don't like to open their mail
proggies anymore because of that sh.. in the mailbox.

My problem is that I'm no programmer, otherwise I'd already implemented tar
pitting into the MTAs. Is there no one who can do this?!?

Rene

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