IETF Logo Mail Archive

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

Ian Eiloart <iane@sussex.ac.uk> Mon, 22 June 2009 10:45 UTC

Return-Path: <iane@sussex.ac.uk>
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 852E33A69B8 for <asrg@core3.amsl.com>; Mon, 22 Jun 2009 03:45:21 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.531
X-Spam-Level:
X-Spam-Status: No, score=-2.531 tagged_above=-999 required=5 tests=[AWL=0.068, BAYES_00=-2.599]
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 Rq9fWupj2btD for <asrg@core3.amsl.com>; Mon, 22 Jun 2009 03:45:20 -0700 (PDT)
Received: from lynndie.uscs.susx.ac.uk (lynndie.uscs.susx.ac.uk [139.184.14.87]) by core3.amsl.com (Postfix) with ESMTP id BA8683A6825 for <asrg@irtf.org>; Mon, 22 Jun 2009 03:45:20 -0700 (PDT)
Received: from lewes.staff.uscs.susx.ac.uk ([139.184.134.43]:54166) by lynndie.uscs.susx.ac.uk with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.64) (envelope-from <iane@sussex.ac.uk>) id KLMZ9T-00066Y-IZ for asrg@irtf.org; Mon, 22 Jun 2009 11:46:41 +0100
Date: Mon, 22 Jun 2009 11:45:35 +0100
From: Ian Eiloart <iane@sussex.ac.uk>
Sender: iane@sussex.ac.uk
To: Anti-Spam Research Group - IRTF <asrg@irtf.org>
Message-ID: <ABC0C2972A80694D28FDE201@lewes.staff.uscs.susx.ac.uk>
In-Reply-To: <4A3D366E.2020304@tana.it>
References: <9112777.1871245190785748.JavaMail.franck@iphone-4.genius.local> <Pine.GSO.4.64.0906161906450.27272@nber6.nber.org> <4D8E56D2-CB37-4713-94E5-0F0C2A1B1F94@blighty.com> <2F26F23C-F1B4-4FD4-BAEB-53168072FF5D@mail-abuse.org> <200906180105.VAA21834@Sparkle.Rodents-Montreal.ORG> <C8F0F10E-E1A4-4D25-AF20-31E3F0DB68DF@mail-abuse.org> <200906182044.QAA05200@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>
Originator-Info: login-token=Mulberry:01jaiRTPYJ/7HOFeWu+c4AHQS/8yCypvDOAhM=; token_authority=support@its.sussex.ac.uk
X-Mailer: Mulberry/4.0.8 (Mac OS X)
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format="flowed"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
X-Sussex: true
X-Sussex-transport: remote_smtp
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: Mon, 22 Jun 2009 10:45:21 -0000

--On 20 June 2009 21:20:14 +0200 Alessandro Vesely <vesely@tana.it> wrote:

> Submission port 587 is not yet universally employed

No, but widely enough that we've not had any complaints. It's even the 
default port used by some MUAs now - like Apple's "Mail.app" and the 
iPhone. Blocking port 25 will encourage deployment of port 587.

In my view, network operators should assume now that email service 
providers DO provide port 587, unless they have an overwhelming business 
case to do otherwise.

-- 
Ian Eiloart
IT Services, University of Sussex
01273-873148 x3148
For new support requests, see http://www.sussex.ac.uk/its/help/

v2.23.0 | Report a Bug | By Email