IETF Logo Mail Archive

Re: [Asrg] DNSBL and IPv6

Steve Atkins <steve@blighty.com> Thu, 25 October 2012 02:59 UTC

Return-Path: <steve@blighty.com>
X-Original-To: asrg@ietfa.amsl.com
Delivered-To: asrg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4726421F8852 for <asrg@ietfa.amsl.com>; Wed, 24 Oct 2012 19:59:56 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.599
X-Spam-Level:
X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599]
Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id M-HraVct3y73 for <asrg@ietfa.amsl.com>; Wed, 24 Oct 2012 19:59:55 -0700 (PDT)
Received: from m.wordtothewise.com (misc.wordtothewise.com [184.105.179.154]) by ietfa.amsl.com (Postfix) with ESMTP id 747D521F8840 for <asrg@irtf.org>; Wed, 24 Oct 2012 19:59:55 -0700 (PDT)
Received: from satsuke.wordtothewise.com (204.11.227.194.static.etheric.net [204.11.227.194]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: steve) by m.wordtothewise.com (Postfix) with ESMTPSA id CFE172DD88 for <asrg@irtf.org>; Wed, 24 Oct 2012 19:59:54 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wordtothewise.com; s=1.wttw; t=1351133994; bh=0fH2b0sNuUXrleFGxS5efnpKXL/zRZIZOKwA6dbqG6k=; h=Content-Type:Mime-Version:Subject:From:In-Reply-To:Date: Content-Transfer-Encoding:Message-Id:References:To; b=J2cu6314QoqcYY4olD2J8nLJbh4vKduGC7p1CtZPSpJ/9akp7drEp8N5CbQEcE5P+ 72x7+Jw56OacGS/xWI6iS/1+tnstqdC6LeaM18P0tJ67nD2T/k2aCONxnP9bfuTdug 5jRt9/xK0WDTWIh+lwpLPh7Al1/SbrVOy7D0Ddz8=
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Mac OS X Mail 6.2 \(1499\))
From: Steve Atkins <steve@blighty.com>
In-Reply-To: <20121025024859.3176.qmail@joyce.lan>
Date: Wed, 24 Oct 2012 20:00:03 -0700
Content-Transfer-Encoding: quoted-printable
Message-Id: <A6AF6224-421E-4483-834B-A1F658BEC7C6@blighty.com>
References: <20121025024859.3176.qmail@joyce.lan>
To: Anti-Spam Research Group - IRTF <asrg@irtf.org>
X-Mailer: Apple Mail (2.1499)
Subject: Re: [Asrg] DNSBL and IPv6
X-BeenThere: asrg@irtf.org
X-Mailman-Version: 2.1.12
Precedence: list
Reply-To: Anti-Spam Research Group - IRTF <asrg@irtf.org>
List-Id: Anti-Spam Research Group - IRTF <asrg.irtf.org>
List-Unsubscribe: <http://www.irtf.org/mailman/options/asrg>, <mailto:asrg-request@irtf.org?subject=unsubscribe>
List-Archive: <http://www.irtf.org/mail-archive/web/asrg>
List-Post: <mailto:asrg@irtf.org>
List-Help: <mailto:asrg-request@irtf.org?subject=help>
List-Subscribe: <http://www.irtf.org/mailman/listinfo/asrg>, <mailto:asrg-request@irtf.org?subject=subscribe>
X-List-Received-Date: Thu, 25 Oct 2012 02:59:56 -0000

On Oct 24, 2012, at 7:48 PM, "John Levine" <johnl@taugh.com> wrote:

>>> Depends what your intentions are.  If you're trying to do listwashing, you
>>> may wall see DNSBL listings rather than bounces.  I like VERP just fine and
>>> my lists use it, but I do get back FBL reports that are munged to the point
>>> where I can't tell who complained.  But they rarely munge the IP. 
>> 
>> People trying to avoid listwashing will learn to munge the bottom bits of any 
>> IPv6 address.
> 
> Well, maybe.  Personally, I think the threat of listwashing is overstated.
> The really slimy senders have lists so dirty that no amount of washing will 
> clean them.
> 
> But anyway, I'm seeing a lot of assertions about how IPv6 mail will work,
> and precious little running core or simulations.  As always, anyone want
> to do some, you know, research?

It's mostly dependent on how IPv6 addresses for mailservers (legitimate and
otherwise) will be allocated, and how much IPv6 will be used for inter-domain
email delivery. Do we have any data, or researched speculation, about that
to work from?

Cheers,
  Steve

v2.8.7 | Report a Bug | By Email