Re: [anti-spam-wg] About DNSBLs vs greylisting - Was: Steve Linford and Spamhaus Internet Terrorists
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From: Esa Laitinen <esa.laitinen@localhost
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Date: Sun, 20 Aug 2006 21:42:41 +0200
On Sun, Aug 20, 2006 at 06:34:20PM +0100, Michele Neylon :: Blacknight.ie wrote:
> Emanuele Balla wrote:
>
> >
> > Using greylisting alone will be soon almost unuseful.
>
> Maybe, but it's stopping a lot of junk for us :)
This may well be. Also a challence/response system, like previously
mentioned qsecretary, stops most of the junk.
They both have one thing in common: they're antisocial to the rest
of the internet. It is a bit like trowing your garbage over your
fence to your neighbours garden. Sure, you've got rid of it, but
created problems to others.
Both also have the same cost-shifting element than spam has: to get
rid of your junk, you shift part of the cost of your e-mail to
others. Greylisting increases senders mail queues unnecessarily, c/r
requires human intervention and more often than not the challence is
sent to innocent 3rd party.
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