Re: [dmarc-ietf] dmarc and forwarding

"Murray S. Kucherawy" <superuser@gmail.com> Wed, 05 February 2014 17:54 UTC

Return-Path: <superuser@gmail.com>
X-Original-To: dmarc@ietfa.amsl.com
Delivered-To: dmarc@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2A3BA1A010D for <dmarc@ietfa.amsl.com>; Wed, 5 Feb 2014 09:54:11 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.999
X-Spam-Level:
X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BHSINY2J7e-u for <dmarc@ietfa.amsl.com>; Wed, 5 Feb 2014 09:54:10 -0800 (PST)
Received: from mail-wi0-x22b.google.com (mail-wi0-x22b.google.com [IPv6:2a00:1450:400c:c05::22b]) by ietfa.amsl.com (Postfix) with ESMTP id DD7E91A001A for <dmarc@ietf.org>; Wed, 5 Feb 2014 09:54:09 -0800 (PST)
Received: by mail-wi0-f171.google.com with SMTP id cc10so839451wib.16 for <dmarc@ietf.org>; Wed, 05 Feb 2014 09:54:08 -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 :cc:content-type; bh=lhJQFklaAe1H0vP5LK8/yg2kFQvPr4A+jjrTU2L7BU4=; b=Q++9OSrB/y6dSFbPl5vb+PJ3hOyRikWq4fjDwxtEsrR4pKSFbjX94DBq4HwvaAwxlv mEcSpGvUGjlCY/rioqn3tjfO3/9UPR4ykwkwYHgKuyriULDuVnro4XrCCi16FlN2a0ZP 99i9qUMyjksIo7qa2fhOSHFnmsgHu2AX1SGgqH8h/T+15jcYL3u7tkS5zCCycJPy/U+a GGtH4vdjmQjYKA3oOhCpW9yZ6Bu+JZwCzi2701nEaDX6qhvsi8f0ZCql2gaD1/dLenDV oc2b3fLATgPEjf+FNCVizRNEc92uNsNoa+RioJfO/MldSf6Kn+E9dN6JuSPRt+TDTOa4 Riqg==
MIME-Version: 1.0
X-Received: by 10.180.163.206 with SMTP id yk14mr17844749wib.5.1391622848701; Wed, 05 Feb 2014 09:54:08 -0800 (PST)
Received: by 10.180.90.132 with HTTP; Wed, 5 Feb 2014 09:54:08 -0800 (PST)
In-Reply-To: <20140205005928.GA15734@roeckx.be>
References: <20140130220330.GA25608@roeckx.be> <52EB0CBF.9020607@rolandturner.com> <20140201013342.GA24125@roeckx.be> <52EC725B.1050809@rolandturner.com> <20140205005928.GA15734@roeckx.be>
Date: Wed, 05 Feb 2014 09:54:08 -0800
Message-ID: <CAL0qLwYdK=_aKq5ZyFuy4HycA9_ToG3YKFeSNtej6-OthTZxMA@mail.gmail.com>
From: "Murray S. Kucherawy" <superuser@gmail.com>
To: Kurt Roeckx <kurt@roeckx.be>
Content-Type: multipart/alternative; boundary="00248c0d79388ef58404f1ac71e3"
Cc: "dmarc@ietf.org" <dmarc@ietf.org>, Roland Turner <roland@rolandturner.com>
Subject: Re: [dmarc-ietf] dmarc and forwarding
X-BeenThere: dmarc@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "Domain-based Message Authentication, Reporting, and Compliance \(DMARC\)" <dmarc.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dmarc>, <mailto:dmarc-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dmarc/>
List-Post: <mailto:dmarc@ietf.org>
List-Help: <mailto:dmarc-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dmarc>, <mailto:dmarc-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 05 Feb 2014 17:54:11 -0000

On Tue, Feb 4, 2014 at 4:59 PM, Kurt Roeckx <kurt@roeckx.be> wrote:

> > Not exactly: DMARC doesn't make determinations about authenticity,
>
> DMARC seems to talk a lot about authentication, including in it's
> name, so I fail to understand that.
>

Neither DKIM nor SPF, upon which DMARC is built, purport to claim
authenticity over the content of the message as a whole, so DMARC isn't
claiming that either.  Rather, it is claiming authenticated use of the
domain you see in the From: field of the message; it goes no further.

-MSK