From owner-freebsd-questions@FreeBSD.ORG  Wed May  2 13:58:19 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id D575F16A411
	for <freebsd-questions@freebsd.org>;
	Wed,  2 May 2007 13:58:19 +0000 (UTC)
	(envelope-from prvs=johnl=0635c80c5e@iecc.com)
Received: from gal.iecc.com (gal.iecc.com [208.31.42.53])
	by mx1.freebsd.org (Postfix) with ESMTP id 3822213C484
	for <freebsd-questions@freebsd.org>;
	Wed,  2 May 2007 13:58:18 +0000 (UTC)
	(envelope-from prvs=johnl=0635c80c5e@iecc.com)
Received: (qmail 77200 invoked from network); 2 May 2007 13:31:38 -0000
Received: from simone-wap.iecc.com (208.31.42.48)
	by mail1.iecc.com with QMQP; 2 May 2007 13:31:38 -0000
Received: from localhost (sendmail-bs@127.0.0.1)
	by localhost with SMTP; 2 May 2007 13:31:37 -0000
Date: Wed, 2 May 2007 09:31:36 -0400 (EDT)
From: John L <johnl@iecc.com>
To: Ted Mittelstaedt <tedm@toybox.placo.com>
In-Reply-To: <BMEDLGAENEKCJFGODFOCMEAKCAAA.tedm@toybox.placo.com>
Message-ID: <20070502091216.B38549@simone.iecc.com>
References: <BMEDLGAENEKCJFGODFOCMEAKCAAA.tedm@toybox.placo.com>
Cleverness: None detected
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: freebsd-questions@freebsd.org
Subject: RE: Greylisting -- Was: Anti Spam
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 02 May 2007 13:58:19 -0000

> NO. I'm making it sound like greylisting is NOT the world's answer to
> stopping spam.  It's NOT a miracle cure, it is NOT the last, best hope
> for peace.

Sigh.  You might want to read the paper "Experiences with Greylisting" 
from the 2005 CEAS conference.

> It was my original intention to show that greylisting worked because it
> allows the blacklists time to get the submitter in their lists, not because
> all spammers cannot tolerate greylisting delays because they are sending
> spam so fast.

This claim has often been made by people who do not have much experience 
with greylisting.  It's not true, and repeating it won't make it true. 
See the paper above for some actual data which shows that the overwhelming 
majority of spammers don't retry, unrelated to blacklists.

> I then added to this later on the intention to show that depending on
> greylisting alone  will not work in the long haul,

Nobody but you is making this absurd claim.  Please stop.

R's,
John