IETF Logo Mail Archive

Re: [Asrg] What are the IPs that sends mail for a domain?

Alessandro Vesely <vesely@tana.it> Wed, 01 July 2009 15:29 UTC

Return-Path: <vesely@tana.it>
X-Original-To: asrg@core3.amsl.com
Delivered-To: asrg@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5A95D3A6F3A for <asrg@core3.amsl.com>; Wed, 1 Jul 2009 08:29:08 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.494
X-Spam-Level:
X-Spam-Status: No, score=-0.494 tagged_above=-999 required=5 tests=[AWL=0.225, BAYES_00=-2.599, HELO_EQ_IT=0.635, HOST_EQ_IT=1.245]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id STR+Df80qVlp for <asrg@core3.amsl.com>; Wed, 1 Jul 2009 08:29:07 -0700 (PDT)
Received: from wmail.tana.it (mail.tana.it [62.94.243.226]) by core3.amsl.com (Postfix) with ESMTP id 990BD3A67AD for <asrg@irtf.org>; Wed, 1 Jul 2009 08:29:07 -0700 (PDT)
Received: from [172.25.197.158] (pcale.tana [172.25.197.158]) (AUTH: CRAM-MD5 ale@tana.it, TLS: TLS1.0, 256bits, RSA_AES_256_CBC_SHA1) by wmail.tana.it with esmtp; Wed, 01 Jul 2009 17:28:16 +0200 id 00000000005DC031.000000004A4B8090.000060BE
Message-ID: <4A4B8090.5000507@tana.it>
Date: Wed, 01 Jul 2009 17:28:16 +0200
From: Alessandro Vesely <vesely@tana.it>
User-Agent: Thunderbird 2.0.0.22 (Windows/20090605)
MIME-Version: 1.0
To: Anti-Spam Research Group - IRTF <asrg@irtf.org>
References: <200906180105.VAA21834@Sparkle.Rodents-Montreal.ORG> <FED77586-8800-4BA6-99EA-30A1D9C089B6@mail-abuse.org> <200906190149.VAA06902@Sparkle.Rodents-Montreal.ORG> <B5252B96-F0AB-4D4A-A0DA-8314AA8E038F@mail-abuse.org> <4A3D366E.2020304@tana.it> <934f64a20906201606pff54ca3y904da141013f1d2a@mail.gmail.com> <4A490CC5.8020601@billmail.scconsult.com> <4A49C1DD.8020205@tana.it> <20090630200150.GL57980@verdi> <4A4B709C.2000109@tana.it> <7ae58c220907010742h1d273f42m8bb3c02e6b969b1@mail.gmail.com>
In-Reply-To: <7ae58c220907010742h1d273f42m8bb3c02e6b969b1@mail.gmail.com>
Content-Type: text/plain; charset="us-ascii"; format="flowed"
Content-Transfer-Encoding: 7bit
Subject: Re: [Asrg] What are the IPs that sends mail for a domain?
X-BeenThere: asrg@irtf.org
X-Mailman-Version: 2.1.9
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/listinfo/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: Wed, 01 Jul 2009 15:29:08 -0000

Dotzero wrote:
>> Thus, it turns out that if an MTA does mixed MSA and old fashioned port 25
>> relaying for its clients, its IP cannot convey accountability.
> 
> The fact that it cannot (may not?) convey accountability does not mean
> that it cannot or should not be held accountable for what it emits.

I understand the 2nd "it" as referring to the MTA, not the IP address. 
It doesn't make much difference, since both of them are objects. 
AFAICS, the point is to hold _someone_ accountable, so that it might 
be theoretically possible to claim damage, in case. It is like an 
insurance, and postmasters tend to stipulate it with IP numbers rather 
than DNS names. Why?

v2.23.0 | Report a Bug | By Email