Re: [dmarc-ietf] DMARCbis WGLC - Issue 144 Mention of ARC in DMARCbis

"Murray S. Kucherawy" <superuser@gmail.com> Tue, 02 April 2024 01:48 UTC

Return-Path: <superuser@gmail.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 F1661C151064 for <dmarc@ietfa.amsl.com>; Mon, 1 Apr 2024 18:48:12 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.097
X-Spam-Level:
X-Spam-Status: No, score=-2.097 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
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 rSW3nBC3PrHc for <dmarc@ietfa.amsl.com>; Mon, 1 Apr 2024 18:48:12 -0700 (PDT)
Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 91635C14F74A for <dmarc@ietf.org>; Mon, 1 Apr 2024 18:48:12 -0700 (PDT)
Received: by mail-ed1-x52b.google.com with SMTP id 4fb4d7f45d1cf-5586764bd0aso1846884a12.0 for <dmarc@ietf.org>; Mon, 01 Apr 2024 18:48:12 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712022489; x=1712627289; darn=ietf.org; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=9Fj5CrW8vk+uzQcKaroqtQ4A02fAYJUL/d6TI/FRNMM=; b=WXPolRLqoOQZxmiw0bwgL5kl5/cdkOi9mRxbibkfq6MvTtn+5YcxPlOWqOTtGMt8et soGTUknf/FtHY2bD72bzXcdmOLUcWnU4JUdA7s5fuEewoVSVJPvQc4O4uu5psIKzti1P GCCdYaS4cKMQzVYxDbcslCVN+MJZyRVSYSC+rxEjtKvrNLszYP925Uy71UAGMiEP03vJ cUyAes+FYQhDcUjAREKucVf79ecvibV4C2UFErKzudX3qf3tHtnb0/fE40KZJbQsuEhk uLxTyw8NQeocv2FHiHd625uVpADEairnuaaDuxMl0NuM2+fb+OjoBiOZ4nr7SkmeiSHn ZawA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712022489; x=1712627289; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=9Fj5CrW8vk+uzQcKaroqtQ4A02fAYJUL/d6TI/FRNMM=; b=uQ2eT/FxKruJuVn0xUB6qwJ1z1o3WQvDifz1XG68KuT7e3lppInpTZS8iGtWjmp3IE KsRWO8WS8ODZp5rcsRkhnyl4ruil9yZFcncOw+RAlMqyf9R1MWKGMClZr75POa5I2KzA tSW0Qe2TmHI/QZrPKWdHgrB/5iEOWXOAj3Et5vwiJ90xnzmWNJJUjhZq/Go/UsgCg5ph ilRg0q4xeHcA9xcyssoBxxEDMrAi3UltYLEMLQLAEGQFj1NwsOsQA3z4R4hSegIbvRLi iWdwfZQbpHLxzSP2bR0X5fOGvBrl096YYOoW08EFwcHU+EfvbaSfmJowxPqmJyQkVNG5 5mJA==
X-Gm-Message-State: AOJu0YyFRpQZmtAUNPfinUvh02GtumUnYunwKAbMYu+ZiIYQuLkMPMhe vKmoYqI0mC7ZHKjVDT3bP6QHfh8dTTjR/YrFxTHQeOXbwM/XD9A0M5Y+3zM1rtAlu+ewR4GfKE7 D6RThWsF0V+fPD0oiV7VY+gpG0iy1JKQYA3A=
X-Google-Smtp-Source: AGHT+IEv19uRzYTk6E6TD2ZfWvo2ZZ22lFbcZNnWz0losCSf4E0kGGVdPgafZd2L2Yi0dlv8sdLlQ2i1zTky7HP9NCk=
X-Received: by 2002:a17:906:a082:b0:a4e:2cd6:8ac4 with SMTP id q2-20020a170906a08200b00a4e2cd68ac4mr5860098ejy.5.1712022489438; Mon, 01 Apr 2024 18:48:09 -0700 (PDT)
MIME-Version: 1.0
References: <CAHej_8x7jGiMQmuJR8qnp5ET8i_Xqz1p4YSeM6RkeY3YiNfaxg@mail.gmail.com> <20240401230502.531CA86A7CC2@ary.qy>
In-Reply-To: <20240401230502.531CA86A7CC2@ary.qy>
From: "Murray S. Kucherawy" <superuser@gmail.com>
Date: Mon, 01 Apr 2024 18:47:56 -0700
Message-ID: <CAL0qLwZakrXvDQPc851ggDuipbdv9+zApPYESkfYq12QB3_UAA@mail.gmail.com>
To: dmarc@ietf.org
Content-Type: multipart/alternative; boundary="00000000000054a1af0615134ce5"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/AN4A9w-dkOcIjKwnHsP-HnqVbwE>
Subject: Re: [dmarc-ietf] DMARCbis WGLC - Issue 144 Mention of ARC in DMARCbis
X-BeenThere: dmarc@ietf.org
X-Mailman-Version: 2.1.39
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: Tue, 02 Apr 2024 01:48:13 -0000

On Mon, Apr 1, 2024 at 4:05 PM John Levine <johnl@taugh.com> wrote:

> >"One possible mitigation to problem X is [ARC], which provides for a
> >mechanism to demonstrate 'chain-of-custody' of a message. However, use of
> >ARC is nascent, as is industry experience with it in connection with
> DMARC."
>
> Generally OK but nascent seems wrong for something that was published five
> years ago.  How about "ARC has found limited acceptance in the industy so
> it is unclear how much help it will provide in practice."
>

Sure.  I used "nascent" because I don't feel like we have seen even basic
statements about how useful it's been in solving the indirect flows
problem, at scale or otherwise, so it's nascent in the same sense that it
is not well-established.

-MSK, p11g