Re: [Asrg] misconception in SPF

Dotzero <dotzero@gmail.com> Mon, 10 December 2012 14:22 UTC

Return-Path: <dotzero@gmail.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 BF00321F8E74 for <asrg@ietfa.amsl.com>; Mon, 10 Dec 2012 06:22:23 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.599
X-Spam-Level:
X-Spam-Status: No, score=-3.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1]
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 Gau70TXiwBhq for <asrg@ietfa.amsl.com>; Mon, 10 Dec 2012 06:22:23 -0800 (PST)
Received: from mail-ia0-f176.google.com (mail-ia0-f176.google.com [209.85.210.176]) by ietfa.amsl.com (Postfix) with ESMTP id 4AE9821F8C02 for <asrg@irtf.org>; Mon, 10 Dec 2012 06:22:23 -0800 (PST)
Received: by mail-ia0-f176.google.com with SMTP id y26so1070363iab.35 for <asrg@irtf.org>; Mon, 10 Dec 2012 06:22:22 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=R2VYHvF4NpTQoLSfjN/DaJrCkanV/xrB1mibx8NH1sY=; b=w7liDC3icglLkEQf2tSbaH/aK30y+AxR9AweUb6Wt4v/7ovDMC8OQ2SGTcSSGbxBCy nrTPDW2ppPuJRRrGmvrOPlU7yOQ9qHY79DTD+EAXRmbL+e063CjkSGjXHTSXm/x4FNz0 ntPwK1ownK260msRYUSXLsN+qfuTTgRZtV0EjlPU3Sb/1MA7+TDxFrH6wwzsfNte5s7D gfOicsd/mOcWSW8GS+kQpx3rzcSRAp0nxbSlYTvfhF5AzZKwfOD4Bpi9U9wEfBSz9H2B MPqNaCCNqTMc4T6GX5QSeaAY+8qGKNnKMY3oJ14T0gd7Hra8n1yQg2ilbTLX7IRbzeeR irbA==
MIME-Version: 1.0
Received: by 10.50.6.169 with SMTP id c9mr6765247iga.24.1355149342714; Mon, 10 Dec 2012 06:22:22 -0800 (PST)
Received: by 10.64.110.138 with HTTP; Mon, 10 Dec 2012 06:22:22 -0800 (PST)
In-Reply-To: <CAFduganBR_E-ui-3Xbic6F7qSmg1-Q+ideXLvb+1isLz8OF0Nw@mail.gmail.com>
References: <20121206212116.10328.qmail@joyce.lan> <50C1A95A.5000001@pscs.co.uk> <50C4A7F8.3010201@dcrocker.net> <CAFdugamTbTirVV2zXKOmc9oTaCS+QiTemhT=jvYJnHYscHQK7g@mail.gmail.com> <0D79787962F6AE4B84B2CC41FC957D0B20ACE6D0@ABN-EXCH1A.green.sophos> <20121209213307.D90C12429B@panix5.panix.com> <CAFduganBR_E-ui-3Xbic6F7qSmg1-Q+ideXLvb+1isLz8OF0Nw@mail.gmail.com>
Date: Mon, 10 Dec 2012 09:22:22 -0500
Message-ID: <CAJ4XoYd_2z+Tr9ydM0Uoy+0=NtNLX9x3Sdy-Pat9w1kiEXw_gA@mail.gmail.com>
From: Dotzero <dotzero@gmail.com>
To: Anti-Spam Research Group - IRTF <asrg@irtf.org>
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: quoted-printable
Subject: Re: [Asrg] misconception in SPF
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: Mon, 10 Dec 2012 14:22:23 -0000

On Sun, Dec 9, 2012 at 6:39 PM, Christian Grunfeld
<christian.grunfeld@gmail.com> wrote:
>
> At my institution I have told my users to check mail headers whenever
> possible.

Not a very scalable solution for the community at large even if it
were a good use of their time.

>They are physicists ... the ones who invented the www time
> ago, so they have some skill level to do it. I always told them: do
> not believe in what you see in the From: also check the envelope and
> any hop in between ! ....but what will I say them when they´ll see
> mails "comming" from a subdomain of the real domain that the mail
> claims to be from and no checks failed?
>

Is manually checking email headers a very good use of their time? How
much does a physicist at CERN get paid? Are they trained at
identifying forged headers?

Mike