linux-kernel - Re: Postgrey experiment at VGER

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Date:	Fri, 15 Dec 2006 11:56:50 +0100
From:	Folkert van Heusden <folkert@...heusden.com>
To:	"Giacomo A. Catenazzi" <cate@...eee.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Postgrey experiment at VGER

>May I suggest a smarter way to filter these spammers, by just whitelisting 
>email addresses of valid posters, after sending a confirmation for the 
>first post.  Now if these spammers get smart, and start using personal 
>email addresses, I would certainly expect some real action by abused email 
>address owners.

Spammers will fake the from-address, possibly using the address of a
spam-trap for the from-field. Your challenge will then be sent to the
spam-trap, causing vger to be blacklisted.

Folkert van Heusden

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