[dmarc-ietf] Re: Proposed Update to Section 7.4, Interoperability Considerations (Issue #170)

John R Levine <johnl@taugh.com> Sat, 28 December 2024 18:49 UTC

Return-Path: <johnl@taugh.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 0BEA3C15152D for <dmarc@ietfa.amsl.com>; Sat, 28 Dec 2024 10:49:55 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.407
X-Spam-Level:
X-Spam-Status: No, score=-4.407 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, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=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="lbaRTuyG"; dkim=pass (2048-bit key) header.d=taugh.com header.b="oQ6M5zkn"
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id i1xVKHiyTPVS for <dmarc@ietfa.amsl.com>; Sat, 28 Dec 2024 10:49:50 -0800 (PST)
Received: from gal.iecc.com (gal.iecc.com [IPv6:2001:470:1f07:1126:0:43:6f73:7461]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E59C5C1CAE8E for <dmarc@ietf.org>; Sat, 28 Dec 2024 10:49:49 -0800 (PST)
Received: (qmail 1200 invoked from network); 28 Dec 2024 18:49:46 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=iecc.com; h=date:message-id:from:to:cc:subject:in-reply-to:references:mime-version:content-type; s=4ae6770484a.k2412; t=1735411776; x=1735757376; bh=HGVuc1ywJJHh374XGSS8hHpAVG4h7fq0X/sHR8NwvM4=; b=lbaRTuyGKK6G/zIwmUDu3LFwQ9uj3gexfguGNkgNX6D1zM2B3KwPcrffb62kIDTFfv4eKJ0UWTbY4VDGREZWjwwY077rR0yOZmPZYe7XQ5BPBMHIxiHzOgGN7fjdUZ+Ibf6ZFuCP8zMLpUzLMoqkoL3gHOWzKRXYllC+pMesXPZoVoQFee68XQonZBr6DJ8ciwCQD3WMeApZD5miQWhnflw8/xveR2a3yrS2Y0Q+fInH64WnS9wmSsSzJCdfysPLjwPjwVfZGD5n3ucOL8HvwDGLHFcR4NJBM+WUNCyCRjwSgVpz+NtiwTjLDi9ZPLUES0vGyEvrMckAhp7irQwf1A==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=taugh.com; h=date:message-id:from:to:cc:subject:in-reply-to:references:mime-version:content-type; s=4ae6770484a.k2412; bh=HGVuc1ywJJHh374XGSS8hHpAVG4h7fq0X/sHR8NwvM4=; b=oQ6M5zknO4OSphfDcV00milfIKkJufRJ+Y4g9r0tQrFI+lBPkDSXqtNLeKB+23xZIlFbo0SBdU9F27xaC55ipsE5WQQMetfifBxlcHwyXHKzOSvI2TgXYmqIqu1Fi5hh90kwu7xolFV8M0D3EoGbI51RIMqlSAEq9TQuwVUwaLPT7kA3ivQmNrbadmQFPqRJqjKMtzwPs1oVl0z6XXR2WUjU9Yul4P+ILaPHa1L5tiMrOe7Chtf82sy8nnvaqpl5IKuNOXfBXxqggTTZW3TWNkS3bwUVVzs50YiGV4zLDFORrc4gzMPg7Oon/yWF6uov0SyxW+FYViSaSKiwaCAphA==
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 (TLS1.3 ECDHE-RSA CHACHA20-POLY1305 AEAD) via TCP6; 28 Dec 2024 18:49:46 -0000
Received: by ary.qy (Postfix, from userid 501) id 57736B08A531; Sat, 28 Dec 2024 13:49:44 -0500 (EST)
Received: from localhost (localhost [127.0.0.1]) by ary.qy (Postfix) with ESMTP id 57263B08A530; Sat, 28 Dec 2024 13:49:44 -0500 (EST)
Date: Sat, 28 Dec 2024 13:49:44 -0500
Message-ID: <2890eb9c-4b1b-4179-d707-77afbea2ed2c@taugh.com>
From: John R Levine <johnl@taugh.com>
To: Tero Kivinen <kivinen@iki.fi>
X-X-Sender: johnl@ary.qy
In-Reply-To: <26480.17504.344281.510433@fireball.acr.fi>
References: <26472.34302.419967.2934@fireball.acr.fi> <20241223022441.69A66AFB257E@ary.qy> <CALaySJ+vL-VqGW+a86gWvpzb=p6sww621vov57YYaCe1-JnpfA@mail.gmail.com> <7a754096-51d5-21eb-c1f7-c39b04794be1@taugh.com> <B2CFCF66-11F3-40EF-8FAD-F3EF7B1847D0@bluepopcorn.net> <30bbaea2-1d55-bc7a-6271-4db9067adb8c@taugh.com> <379CE63F-388E-4A30-9E14-545B9657AB99@bluepopcorn.net> <ddbaae84-b261-794d-ae76-ddf0afae1523@taugh.com> <26480.17504.344281.510433@fireball.acr.fi>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format="flowed"
Message-ID-Hash: W3KTOA2LASN2VA4YOTAWOYGIO2B534BV
X-Message-ID-Hash: W3KTOA2LASN2VA4YOTAWOYGIO2B534BV
X-MailFrom: johnl@taugh.com
X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-dmarc.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header
CC: dmarc@ietf.org
X-Mailman-Version: 3.3.9rc6
Precedence: list
Subject: [dmarc-ietf] Re: Proposed Update to Section 7.4, Interoperability Considerations (Issue #170)
List-Id: "Domain-based Message Authentication, Reporting, and Compliance (DMARC)" <dmarc.ietf.org>
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/dddeeHpP_HlYp59LV9OU_UB29LY>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dmarc>
List-Help: <mailto:dmarc-request@ietf.org?subject=help>
List-Owner: <mailto:dmarc-owner@ietf.org>
List-Post: <mailto:dmarc@ietf.org>
List-Subscribe: <mailto:dmarc-join@ietf.org>
List-Unsubscribe: <mailto:dmarc-leave@ietf.org>

On Sat, 28 Dec 2024, Tero Kivinen wrote:
> The DMARCbis changed this to say:
>
>   For each Authentication Mechanism underlying DMARC, perform the
>   required check to determine if an Authenticated Identifier
>   (#authenticated-identifier) exists for the message if such check
>   has not already been performed.
>
> (section 5.3.3), which is does not use RFC2119 keywords anymore
> (RFC7489 did use RFC2119 keywords), and is quite ambiguous what it
> really means, especially as it seems some people here seems to read
> that mail receiver can only do SPF or DKIM.
>
>> If you don't agree please identify the part of the draft that causes the
>> putported interop problem.

You have a point.  As always, send text.

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly