Re: [dmarc-ietf] ARC questions

John R Levine <johnl@taugh.com> Mon, 23 November 2020 20:10 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 A8E933A16DD for <dmarc@ietfa.amsl.com>; Mon, 23 Nov 2020 12:10:56 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.2
X-Spam-Level:
X-Spam-Status: No, score=-0.2 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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=HxbtufbE; dkim=pass (2048-bit key) header.d=taugh.com header.b=g3/sWXK7
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 dmMFC-qnxxLh for <dmarc@ietfa.amsl.com>; Mon, 23 Nov 2020 12:10:55 -0800 (PST)
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 0A8C33A1146 for <dmarc@ietf.org>; Mon, 23 Nov 2020 12:09:27 -0800 (PST)
Received: (qmail 66032 invoked from network); 23 Nov 2020 20:09:26 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=iecc.com; h=date:message-id:from:to:cc:subject:in-reply-to:references:mime-version:content-type; s=101ed.5fbc16f6.k2011; i=johnl-iecc.com@submit.iecc.com; bh=Hx/23O8VyXVHLFgrUQM7EPsEB//2secofggBFieHXvU=; b=HxbtufbEKIk7IT+xncJHPZ/YGuHP6GKBfD9e5NBi3H+eSYVXLY1bq7XvIh0qp14LYanLd26R7QjfZMqnc3gW7tVJ/nQhSupbUsfaY8HNIT57QUs14j1boCCLE10lcwL4Kon7k8hCUoUO2DlPJFP9hvrAQX2L2aNTjykKaoXJguyoAKxbw8hPhTfRvj0q3viwFnjxEO3d2uQ59vbjd1n33BtdTS40sjLdqNulEBggMhJvyWyS5ZWGVuE4XfRJcdL+uC0E38Jbq5ensR32z9jX3vL2xo/9HwunlAiz4seZckSwcm5sHv2v+6NeKtRMg9meubKQqN2ha6dlBJC9besKuQ==
DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=taugh.com; h=date:message-id:from:to:cc:subject:in-reply-to:references:mime-version:content-type; s=101ed.5fbc16f6.k2011; olt=johnl-iecc.com@submit.iecc.com; bh=Hx/23O8VyXVHLFgrUQM7EPsEB//2secofggBFieHXvU=; b=g3/sWXK7pXksxuMV3ofP0EZnFNN/SisQV5MrxHVnG+D8h9JjORsvxar33Pwv+P0L7yzNbhKfHNQFPvvDB6iphjvQR+Gce8wkhI4Tf4gFjDVq8gjMTJpzc0JCSVxDbe1aLE6MdiXV8PT7TeQyKd8Ehp+7Eck/RCgr4Eu7ULZmTm8A8S4+BOKoNz8UOsTjoyOwqBmjNmPAG4z7T329/I/C1JiCGRxN/ZcCCPDeqWTP0biQGocwYl1S3kQ30Yj9xHWgXziEJLfQtBXWAS5Z8Yae2Tmn4TeKFtLh6Wb5Ck4iKiicItTkQKBu2L0BoVUiNhoDQwta1ySQN3LQnbmyy1a2vA==
Received: from localhost ([IPv6:2001:470:1f07:1126::78:696d:6170]) by imap.iecc.com ([IPv6:2001:470:1f07:1126::78:696d:6170]) with ESMTPSA (TLS1.3 ECDHE-RSA AES-256-GCM AEAD, johnl@iecc.com) via TCP6; 23 Nov 2020 20:09:26 -0000
Date: Mon, 23 Nov 2020 15:09:25 -0500
Message-ID: <a85b22c9-1f1c-f596-8cb4-8488a251e528@taugh.com>
From: John R Levine <johnl@taugh.com>
To: Michael Thomas <mike@mtcc.com>
Cc: "dmarc@ietf.org" <dmarc@ietf.org>
In-Reply-To: <30ecfcdf-a90a-7e1d-8241-64df3332089f@mtcc.com>
References: <dcc265f9-a143-5093-eba0-94ee059c7cc7@mtcc.com> <20201122021417.B5E6E27B3E59@ary.qy> <CABuGu1pX=5ZC4RLsv19qrosRN9nCrPdeSk5Xg4O7ViEZit6dnA@mail.gmail.com> <453c4db4-fc62-dc76-5b15-707623d66f9f@mtcc.com> <64f18b-ae8-8c15-3d33-ff2d864c35bc@taugh.com> <884541e6-5076-7f8f-d1d2-d68ea9c5a2bc@mtcc.com> <8fa2d88c-55df-aa8e-932f-8f7bc97d741@taugh.com> <77854271-296a-b4f6-202e-c085036289d4@mtcc.com> <feac41f-6144-2e21-c3fa-2b7770bfeefc@taugh.com> <30ecfcdf-a90a-7e1d-8241-64df3332089f@mtcc.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"; format="flowed"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/gZE7FquTuBkOiAwqhGA9mNnzgLE>
Subject: Re: [dmarc-ietf] ARC questions
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: Mon, 23 Nov 2020 20:11:03 -0000

> If auth-res is sometimes deleted, why wouldn't we expect the arc auth-res to 
> not be deleted too?

Please see RFC 7001, section 5.

> Since this is an experiment, do we have an idea 
> of what the rest of the problem is after the typical mailing list-like 
> signature breakers are excluded?

Sorry, this question makes no sense. The point of ARC is to deal with
the kind of breakage that mailing lists cause.

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