Re: DMARC and yahoo

Doug Royer <douglasroyer@gmail.com> Mon, 21 April 2014 18:04 UTC

Return-Path: <douglasroyer@gmail.com>
X-Original-To: ietf@ietfa.amsl.com
Delivered-To: ietf@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E42611A0224 for <ietf@ietfa.amsl.com>; Mon, 21 Apr 2014 11:04:19 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1
X-Spam-Level:
X-Spam-Status: No, score=-1 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, FREEMAIL_REPLY=1, SPF_PASS=-0.001] autolearn=no
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 1bIDFd8XzW7C for <ietf@ietfa.amsl.com>; Mon, 21 Apr 2014 11:04:15 -0700 (PDT)
Received: from mail-pd0-x22c.google.com (mail-pd0-x22c.google.com [IPv6:2607:f8b0:400e:c02::22c]) by ietfa.amsl.com (Postfix) with ESMTP id 7078F1A022B for <ietf@ietf.org>; Mon, 21 Apr 2014 11:04:15 -0700 (PDT)
Received: by mail-pd0-f172.google.com with SMTP id p10so3937542pdj.3 for <ietf@ietf.org>; Mon, 21 Apr 2014 11:04:10 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:organization:user-agent:mime-version:to :subject:references:in-reply-to:content-type; bh=YXUzpC58el++r2Yd8QfwGBUzcuy2LJWgwvXVL7eCMBQ=; b=JerBjrUydGXIES8IbU6681DAC/bHmKMG+FVhcVcxD3ajredfCzJBeNL2GTMjoy63Ws W0ThjkZsYKp0v5rrEgmJ+uaDtEaS2ls7avWB+m4zupGGb2n86ASwprTci/YH2G+S9VZX EtnePSOC+EAhnuJ+SNqvR9hWFPRGlnhmVD7/UMwE0+ikvyivi/pG4rvel7HVA4VSPyJZ OtCPKZo50ZFolXpz4G2rST2sO7m7iE+wPoB/xzP3UGgmtUmlcZ0f/QdeQzTfHxIWte8p gDFycSa+hd00ZAFLZFcpPTAtdUPRK6sJV+HpSw891NZuokkhw0wkD6qQZbNnsSwpZNEt lKjg==
X-Received: by 10.67.29.131 with SMTP id jw3mr4521628pad.141.1398103450459; Mon, 21 Apr 2014 11:04:10 -0700 (PDT)
Received: from [192.168.15.4] (184-76-96-188.war.clearwire-wmx.net. [184.76.96.188]) by mx.google.com with ESMTPSA id oa3sm79513112pbb.15.2014.04.21.11.04.07 for <ietf@ietf.org> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 21 Apr 2014 11:04:08 -0700 (PDT)
Message-ID: <53555D90.7050709@gmail.com>
Date: Mon, 21 Apr 2014 12:04:00 -0600
From: Doug Royer <douglasroyer@gmail.com>
Organization: http://SoftwareAndServices.NET
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.4.0
MIME-Version: 1.0
To: ietf@ietf.org
Subject: Re: DMARC and yahoo
References: <CAKW6Ri6OUmxGaBOGR2hoWpDOGWsVQ9tQ2Q9ogkT5wzFhFJLBbQ@mail.gmail.com> <534D9C2C.8010606@gmail.com> <20140415214348.GL4456@thunk.org> <1397607352.389753533@f361.i.mail.ru> <534DCFFB.4080102@gmail.com> <20140416012205.GC12078@thunk.org> <24986.1397615002@sandelman.ca> <20140416023813.GA21807@thunk.org> <C8A2B0B4-5FA4-4BFE-AECE-C61667ECF2FB@secure-endpoints.com> <4948F093F369F051CAF0B810@[192.168.1.128]> <53542D90.8030709@gmail.com>
In-Reply-To: <53542D90.8030709@gmail.com>
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms080200070900060301080502"
Archived-At: http://mailarchive.ietf.org/arch/msg/ietf/DEIND809yymdhUygBN6l17zjxu0
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: IETF-Discussion <ietf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf>, <mailto:ietf-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/ietf/>
List-Post: <mailto:ietf@ietf.org>
List-Help: <mailto:ietf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 21 Apr 2014 18:04:20 -0000

If yahoo sends out an email from list-name@yahoo, then that is where the 
email is from.

So it would be correct to set the from/sender in the email to be 
list-name@yahoo.com.
Why try to make it fake anything?

If you want to preserve any digital signature in the original message, 
then send the original email as a mime body part in the forwarded message.


-- 

Doug Royer - (K7DMR.us / DougRoyer.com)
DouglasRoyer@gmail.com
714-989-6135