[ietf-822] Aptness of DKIM for MLs
Alessandro Vesely <vesely@tana.it> Wed, 07 May 2014 10:06 UTC
Return-Path: <vesely@tana.it>
X-Original-To: ietf-822@ietfa.amsl.com
Delivered-To: ietf-822@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 972D11A06B2 for <ietf-822@ietfa.amsl.com>; Wed, 7 May 2014 03:06:49 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.773
X-Spam-Level:
X-Spam-Status: No, score=-0.773 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HELO_EQ_IT=0.635, HOST_EQ_IT=1.245, MANGLED_TOOL=2.3, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_HELO_PASS=-0.001, 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 ejSxvG1Q5djT for <ietf-822@ietfa.amsl.com>; Wed, 7 May 2014 03:06:48 -0700 (PDT)
Received: from wmail.tana.it (www.tana.it [62.94.243.226]) by ietfa.amsl.com (Postfix) with ESMTP id 41E841A06B7 for <ietf-822@ietf.org>; Wed, 7 May 2014 03:06:47 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tana.it; s=beta; t=1399457202; bh=0wf4vmUrKtrFomI6Q2DByJvsX6C2ndbKiJRRsD99JiY=; l=1720; h=Date:From:To:References:In-Reply-To; b=Ad8vF8vppVIXwnmNPeSjnzW3yQCuuXxHeZL2UP65x2oMN263Va2DJvreorsw54tS1 1NwTrugqlitX2vd7YJpwH8a4AYODkL3BRGkDIQzcLiJMUShKvm++k1Es0+4DWvxp5z ECumGDzLrVRfqE/bQUVLayHZrt+xw0rVD1bKF1Bg=
Authentication-Results: tana.it; auth=pass (details omitted)
Received: from [172.25.197.88] (pcale.tana [172.25.197.88]) (AUTH: CRAM-MD5 uXDGrn@SYT0/k) by wmail.tana.it with ESMTPA; Wed, 07 May 2014 12:06:42 +0200 id 00000000005DC044.00000000536A05B2.00004698
Message-ID: <536A05B2.9060805@tana.it>
Date: Wed, 07 May 2014 12:06:42 +0200
From: Alessandro Vesely <vesely@tana.it>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.4.0
MIME-Version: 1.0
To: John Levine <johnl@taugh.com>, ietf-822@ietf.org
References: <20140506171238.28535.qmail@joyce.lan>
In-Reply-To: <20140506171238.28535.qmail@joyce.lan>
X-Enigmail-Version: 1.6
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Archived-At: http://mailarchive.ietf.org/arch/msg/ietf-822/HofFnyjUR2xzBFkY3BQTd25oqm4
Subject: [ietf-822] Aptness of DKIM for MLs
X-BeenThere: ietf-822@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "Discussion of issues related to Internet Message Format \[RFC 822, RFC 2822, RFC 5322\]" <ietf-822.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf-822>, <mailto:ietf-822-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/ietf-822/>
List-Post: <mailto:ietf-822@ietf.org>
List-Help: <mailto:ietf-822-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf-822>, <mailto:ietf-822-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 07 May 2014 10:06:49 -0000
On Tue 06/May/2014 19:12:38 +0200 John Levine wrote: > > Anything that says "I'm a mailing list" is only useful with some > sort of external validation that it really is a list. Please note that "really is a list" actually means "/good/ list". An unmoderated, unfiltered list, with no posting restrictions and dubious subscription practices would technically still be a list, but nobody would whitelist it --nor subscribe to it. > If you have to do that anyway, you might as well use the list's > DKIM signature as the key which doesn't involve inventing any new > mechanism. A useful mechanism tells domain admins which users post to which lists. Domain admins can consider those posts as endorsements from their users. > I think it's also pretty clear that any scheme that depends on the > DKIM signatures of incoming messages transiting mailing list software > won't work, either. As that is being told by the author of "A DKIM Profile to Enable Message Forwarding", I guess I should believe it. However, it is not clear why. Paul asked for Message-ID: to be signed too.[1] I suggested that each ML defines an h= header field list that authors' domains can reliably sign.[2] You mentioned even From: cannot be reliably signed because MLMs need to "standardize" its syntax.[3] It seems to me that eliminating some of such gratuitous changes is the solution to DMARC-for-MLs which minimizes the alterations in MLM software. Are you sure it won't work? Ale [1] http://www.ietf.org/mail-archive/web/ietf-822/current/msg06856.html [2] http://www.ietf.org/mail-archive/web/ietf-822/current/msg06715.html [3] http://www.ietf.org/mail-archive/web/ietf-822/current/msg06821.html
- [ietf-822] A permission to re-sign header John Levine
- Re: [ietf-822] A permission to re-sign header Alessandro Vesely
- Re: [ietf-822] A permission to re-sign header John Levine
- Re: [ietf-822] A permission to re-sign header Hector Santos
- Re: [ietf-822] A permission to re-sign header Murray S. Kucherawy
- Re: [ietf-822] A permission to re-sign header John R Levine
- Re: [ietf-822] A permission to re-sign header Murray S. Kucherawy
- Re: [ietf-822] A permission to re-sign header John R Levine
- Re: [ietf-822] A permission to re-sign header Pete Resnick
- Re: [ietf-822] A permission to re-sign header Pete Resnick
- Re: [ietf-822] A permission to re-sign header John R Levine
- Re: [ietf-822] A permission to re-sign header Pete Resnick
- Re: [ietf-822] A permission to re-sign header John R Levine
- Re: [ietf-822] A permission to re-sign header Alessandro Vesely
- Re: [ietf-822] A permission to re-sign header Michael Richardson
- Re: [ietf-822] A permission to re-sign header Michael Richardson
- Re: [ietf-822] A permission to re-sign header Theodore Ts'o
- Re: [ietf-822] A permission to re-sign header Pete Resnick
- Re: [ietf-822] A permission to re-sign header Miles Fidelman
- Re: [ietf-822] A permission to re-sign header John Levine
- Re: [ietf-822] one can re-sign without a permissi… Ned Freed
- Re: [ietf-822] one can re-sign without a permissi… Alessandro Vesely
- Re: [ietf-822] A permission to re-sign header Ned Freed
- Re: [ietf-822] A permission to re-sign header Alessandro Vesely
- Re: [ietf-822] A permission to re-sign header Paul Smith
- Re: [ietf-822] don't need a permission to re-sign… John Levine
- Re: [ietf-822] don't need a permission to re-sign… Ned Freed
- Re: [ietf-822] don't need a permission to re-sign… John R Levine
- Re: [ietf-822] don't need a permission to re-sign… Ned Freed
- Re: [ietf-822] one can re-sign without a permissi… Alessandro Vesely
- Re: [ietf-822] one can re-sign without a permissi… Ned Freed
- Re: [ietf-822] one can re-sign without a permissi… Pete Resnick
- Re: [ietf-822] one can re-sign without a permissi… Douglas Otis
- [ietf-822] We need a DKIM Policy Working Group Hector Santos
- Re: [ietf-822] We need a DKIM Policy Working Group S Moonesamy
- Re: [ietf-822] one can re-sign without a permissi… John Levine
- Re: [ietf-822] one can re-sign without a permissi… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Miles Fidelman
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Alessandro Vesely
- Re: [ietf-822] one can re-sign without a permissi… Douglas Otis
- Re: [ietf-822] one can re-sign without a permissi… Pete Resnick
- Re: [ietf-822] one can re-sign without a permissi… Alessandro Vesely
- Re: [ietf-822] one can re-sign without a permissi… Paul Smith
- Re: [ietf-822] one can re-sign without a permissi… John R Levine
- Re: [ietf-822] one can re-sign without a permissi… Hector Santos
- Re: [ietf-822] one can re-sign without a permissi… Douglas Otis
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Alessandro Vesely
- Re: [ietf-822] one can re-sign without a permissi… Hector Santos
- [ietf-822] WSJ/gmail/ML, was a permission to... Alessandro Vesely
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John R Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Paul Smith
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Rolf E. Sonneveld
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Hector Santos
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Michael Richardson
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Paul Smith
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Alessandro Vesely
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Miles Fidelman
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John R Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Arnt Gulbrandsen
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Ned Freed
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Dave Crocker
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Ned Freed
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John R Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John R Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Arnt Gulbrandsen
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Bart Schaefer
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Hector Santos
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Michael Richardson
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Michael Richardson
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Ned Freed
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Michael Richardson
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Michael Richardson
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Russ Allbery
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Brandon Long
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Brandon Long
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Arnt Gulbrandsen
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Alessandro Vesely
- Re: [ietf-822] one can re-sign without a permissi… Paul Smith
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Hector Santos
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John R Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Ned Freed
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… S Moonesamy
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Russ Allbery
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Hector Santos
- Re: [ietf-822] one can re-sign without a permissi… Brandon Long
- Re: [ietf-822] one can re-sign without a permissi… Murray S. Kucherawy
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Miles Fidelman
- Re: [ietf-822] one can re-sign without a permissi… John R Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Ned Freed
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… S Moonesamy
- Re: [ietf-822] one can re-sign without a permissi… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Miles Fidelman
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Scott Kitterman
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Russ Allbery
- Re: [ietf-822] one can re-sign without a permissi… Murray S. Kucherawy
- Re: [ietf-822] one can re-sign without a permissi… John R Levine
- Re: [ietf-822] one can re-sign without a permissi… Hector Santos
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… S Moonesamy
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Paul Smith
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Alessandro Vesely
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Miles Fidelman
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… John Levine
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Brandon Long
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Brandon Long
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Russ Allbery
- [ietf-822] Aptness of DKIM for MLs Alessandro Vesely
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Alessandro Vesely
- Re: [ietf-822] Aptness of DKIM for MLs S Moonesamy
- Re: [ietf-822] Aptness of DKIM for MLs Alessandro Vesely
- Re: [ietf-822] Aptness of DKIM for MLs S Moonesamy
- Re: [ietf-822] Aptness of DKIM for MLs Hector Santos
- Re: [ietf-822] Aptness of DKIM for MLs Douglas Otis
- Re: [ietf-822] Aptness of DKIM for MLs Alessandro Vesely
- Re: [ietf-822] Aptness of DKIM for MLs Douglas Otis
- Re: [ietf-822] WSJ/gmail/ML, was a permission to.… Douglas Otis
- Re: [ietf-822] Aptness of DKIM for MLs Alessandro Vesely
- Re: [ietf-822] one can re-sign without a permissi… Douglas Otis