Re: [IETF] DMARC methods in mailman

"John Levine" <johnl@taugh.com> Tue, 27 December 2016 01:34 UTC

Return-Path: <johnl@taugh.com>
X-Original-To: ietf@ietfa.amsl.com
Delivered-To: ietf@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 40AC9129951 for <ietf@ietfa.amsl.com>; Mon, 26 Dec 2016 17:34:25 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Level:
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=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 MERhlejqT75E for <ietf@ietfa.amsl.com>; Mon, 26 Dec 2016 17:34:24 -0800 (PST)
Received: from miucha.iecc.com (abusenet-1-pt.tunnel.tserv4.nyc4.ipv6.he.net [IPv6:2001:470:1f06:1126::2]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 543EA12956B for <ietf@ietf.org>; Mon, 26 Dec 2016 17:34:24 -0800 (PST)
Received: (qmail 31879 invoked from network); 27 Dec 2016 01:34:29 -0000
Received: from unknown (64.57.183.18) by mail1.iecc.com with QMQP; 27 Dec 2016 01:34:29 -0000
Date: 27 Dec 2016 01:34:01 -0000
Message-ID: <20161227013401.11378.qmail@ary.lan>
From: "John Levine" <johnl@taugh.com>
To: ietf@ietf.org
Subject: Re: [IETF] DMARC methods in mailman
In-Reply-To: <20161226205249.rneaenhh5c2dcpz4@thunk.org>
Organization:
X-Headerized: yes
Mime-Version: 1.0
Content-type: text/plain; charset=utf-8
Content-transfer-encoding: 8bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf/mVhigq8vi8eiv0EZ9I2O0iM4cDU>
Cc: tytso@mit.edu
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.17
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: <https://mailarchive.ietf.org/arch/browse/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: Tue, 27 Dec 2016 01:34:25 -0000

>By that argument, there's no excuse for the big mailer providers for
>bouncing List mail because of DMARC.  They could just reference the
>List-ID field, and display something like this:
>
>    <From> via mailing list <list-id header contents>

Great idea.  Because there is no possibility whatsoever that if mail
systems did that, bad guys would put in fake List-IDs to get their
phishes delivered.

R's,
John