Re: [dmarc-ietf] Consensus Sought - Ticket #53 (Remove reporting message size chunking) - With Interim Notes

John Levine <johnl@taugh.com> Fri, 28 May 2021 18:01 UTC

Return-Path: <johnl@iecc.com>
X-Original-To: dmarc@ietfa.amsl.com
Delivered-To: dmarc@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 67DCD3A301C for <dmarc@ietfa.amsl.com>; Fri, 28 May 2021 11:01:31 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.85
X-Spam-Level:
X-Spam-Status: No, score=-1.85 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=iecc.com header.b=zjmuegGb; dkim=pass (2048-bit key) header.d=taugh.com header.b=dQ8F2+d6
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 lvVLCYXoyymX for <dmarc@ietfa.amsl.com>; Fri, 28 May 2021 11:01:26 -0700 (PDT)
Received: from gal.iecc.com (gal.iecc.com [IPv6:2001:470:1f07:1126:0:43:6f73:7461]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1DF743A301D for <dmarc@ietf.org>; Fri, 28 May 2021 11:01:25 -0700 (PDT)
Received: (qmail 41619 invoked from network); 28 May 2021 18:01:25 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=iecc.com; h=date:message-id:from:to:cc:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:cleverness; s=a291.60b12ff5.k2105; bh=xN7QJ8ETHQSv3NNKzQfS19RakLqL1wksFfEcMMSNk6c=; b=zjmuegGbXe5tOdJkEPlf2gjH+Rhth2S0P/C1kaEsSeuY+UomSjaYgCLtaQh1cdR7SO+gKIb6yVqbwKpZbEvKe77EQYD80jARdqFclod/C8lJxueIF8GcVUy3YVRE+xbXTheLlU9M9JaW4kZBxhd98SZlwzbBO3otrpZzsInWclEYpqucf1rug8Hj6T7cvfBMhfaxH6eIdut2Y0ZMWZGyARV7UpDDEq9hdjAqG+y7g0UraVzO/AUXTPS/D6hcYZvKJNuMQM3sqSTJWUCwyXy4QNZlmTYeeq85uvrx1KLGVzToMHl5k/J9HNkKD+rup1JCft1UHWGn53Nc6oHZ58Q3Wg==
DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=taugh.com; h=date:message-id:from:to:cc:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:cleverness; s=a291.60b12ff5.k2105; bh=xN7QJ8ETHQSv3NNKzQfS19RakLqL1wksFfEcMMSNk6c=; b=dQ8F2+d6TXQDQnKtngUSnMPp8cSF4JzReaKRyCcmqxbcCbVywHzotjvdapdbvFfwNhc7GKpgQlx2Gc7pt5XE3P61bwWCVG+bex8Klpb+7bvLY6fadws1BBtSz208DkRGahWz/UdPQDIx0caJmX907j9p8Q6bW960P1e19Brmmzm6XCKk1cCvCf4rAc+pgl13lBmGBpf7n+xwNMQGl5jtMVoEKf5qAgk1h1IWEJpIkqTAnMnW97uLGpEO91nO/kVSBFnYHYCoq6rIuxdmffzW3z1WYztWxoul56u2SXJBw+2xK6WzkvcoJD/RuUZhAqspvGqWgcCYSzC3Am3wprRv4w==
Received: from ary.qy ([IPv6:2001:470:1f07:1126::78:696d:6170]) by imap.iecc.com ([IPv6:2001:470:1f07:1126::78:696d:6170]) with ESMTPS (TLS1.2 ECDHE-RSA AES-256-GCM AEAD) via TCP6; 28 May 2021 18:01:24 -0000
Received: by ary.qy (Postfix, from userid 501) id 2FFA08E0340; Fri, 28 May 2021 14:01:22 -0400 (EDT)
Date: 28 May 2021 14:01:22 -0400
Message-Id: <20210528180124.2FFA08E0340@ary.qy>
From: "John Levine" <johnl@taugh.com>
To: dmarc@ietf.org
Cc: vesely@tana.it
In-Reply-To: <110d8263-4226-b0b9-dee8-d3edb7b0c07c@tana.it>
Organization: Taughannock Networks
X-Headerized: yes
Cleverness: minimal
Mime-Version: 1.0
Content-type: text/plain; charset=utf-8
Content-transfer-encoding: 8bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/lA9DthuVlfH6jNwYNSAcUXgy_Eg>
Subject: Re: [dmarc-ietf] Consensus Sought - Ticket #53 (Remove reporting message size chunking) - With Interim Notes
X-BeenThere: dmarc@ietf.org
X-Mailman-Version: 2.1.29
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: <https://mailarchive.ietf.org/arch/browse/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: Fri, 28 May 2021 18:01:32 -0000

It appears that Alessandro Vesely  <vesely@tana.it> said:
>On Fri 28/May/2021 17:46:20 +0200 Todd Herr wrote:
>> 
>> Consensus on Ticket #53 <https://trac.ietf.org/trac/dmarc/ticket/53> (Remove 
>> reporting message size chunking) was reached during the May 27 DMARC Interim to 
>> remove the feature and update the IANA registry and ABNF grammar as necessary.
>
>Agreed.  However, the grammar should be retained in order to not invalidate 
>existing records.  Any !10m tail should just be ignored.

What I heard at the interim was that not only does nobody implement size limits,
some large receivers don't recognize the !nn suffix and the reports fail.  Take
it out so the spec agrees with reality.

R's,
John