IETF Logo Mail Archive

Re: [dmarc-ietf] Tickets 98 and 99 -- fake reports are not a problem and if they were authentication would not help

Douglas Foster <dougfoster.emailstandards@gmail.com> Mon, 25 January 2021 19:42 UTC

Return-Path: <dougfoster.emailstandards@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 7F4CC3A1842 for <dmarc@ietfa.amsl.com>; Mon, 25 Jan 2021 11:42:00 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.197
X-Spam-Level:
X-Spam-Status: No, score=-0.197 tagged_above=-999 required=5 tests=[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, SPF_HELO_NONE=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=gmail.com
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 BWQxA0Y9jhvI for <dmarc@ietfa.amsl.com>; Mon, 25 Jan 2021 11:41:59 -0800 (PST)
Received: from mail-vs1-xe31.google.com (mail-vs1-xe31.google.com [IPv6:2607:f8b0:4864:20::e31]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F1D163A1841 for <dmarc@ietf.org>; Mon, 25 Jan 2021 11:41:58 -0800 (PST)
Received: by mail-vs1-xe31.google.com with SMTP id b5so3219942vsh.3 for <dmarc@ietf.org>; Mon, 25 Jan 2021 11:41:58 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=THrDBbeZ1XoieayfhI1CJpPbLzyz0OSNCyDzYyEbxkk=; b=VQW8gBZ3CSABQTbf0wSe9EEbWnA2b14VMt22P40Va2JOp6tTX89i0CXOCE2bkGcR/2 l1p9Cs7jJ2/8TxALLJdkuxW2rGaT6N7j6cqSBGAGHHib7W9nsNkj4mEx9ukUZ/Vcc/mn PisjACPYaOGKDuddy/gHPJ50czmUNpNXdSyDE/11eBDC3LIlbZa01csruXOPBTnR/TFi vt7JkU3BHzXuBckQkU9KAMrSj5ZeDGCYJoi8fOp0Jro2k5Fo2eL1WlCrrLJAb51WrUqh o2OaEfYupMy25AD9kpe7/kYL0vwvmH/xJINyz9um/VrPlvMv6zMhnJs/j3eiEDzZ0z1i j9IA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=THrDBbeZ1XoieayfhI1CJpPbLzyz0OSNCyDzYyEbxkk=; b=W3jdPR5fyIOmFoNNHHuNP2RdZaUB+bcETfQoOWXzcCpFzxcrL5REaSAbxvB4EVP3LB 1UO1HL09hL92ZjVTN/WgPm4R0BlwMcfw+o5r9MSI2qcd7UhFQUFqYh3IVA3h52M1ii73 upv2/AagYmpJQxSs8Wh+qNWg/Wf0OCE4vWgMiDMhVNSNh0GwAw+TgEX9nHXc11LcB6fk nOgifIKbkC2Thp1sD+XrUGgdN6PHS87tUfmIFQJb3xfxziSnEbEfZtmDrDAT4HnTVyYD WAlY+qbhCE19ozIECjJF8VaGgdk18r3jGNwSU7L3oLjcMnr2L8aQW+V1aJPUxVkQ8kN8 CK2A==
X-Gm-Message-State: AOAM530EjG8sUYwr/aCUM7Qx5RcKKM+mEtZgMIl9zwf7FR1B8BdByo63 UmP4SD92mi4PrZvbu+EKv1015Q7EtNNbvHNvB3IBz/8WCi0=
X-Google-Smtp-Source: ABdhPJwzFvoyv6O+IJvf7kP6K3vCL9ULVFWtIoFSlVnKYuPyCJF6CxIvoLrB3JxcjX2tNU8vvIdcGcCp8WOUJGpWR1A=
X-Received: by 2002:a67:87c2:: with SMTP id j185mr1970265vsd.25.1611603717718; Mon, 25 Jan 2021 11:41:57 -0800 (PST)
MIME-Version: 1.0
References: <20210125182350.DE0FE6C131FB@ary.qy> <ddb67702-01e7-783d-9fa6-3e427542092c@mtcc.com> <CAH48ZfwejX1PHO7x1bjJTYyehXZWMuq3jrHFJzAHWfy1jQ+NQg@mail.gmail.com> <26931c0b-9475-ffd5-a996-cc6ffad3a304@mtcc.com>
In-Reply-To: <26931c0b-9475-ffd5-a996-cc6ffad3a304@mtcc.com>
From: Douglas Foster <dougfoster.emailstandards@gmail.com>
Date: Mon, 25 Jan 2021 14:41:43 -0500
Message-ID: <CAH48ZfyVO3wHjKg-Dj01UgSKkK0sOPE-2pOBvwp--xRkJLjL=A@mail.gmail.com>
To: IETF DMARC WG <dmarc@ietf.org>
Content-Type: multipart/alternative; boundary="0000000000001d088d05b9bebba6"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/fmed2ZLRRm-xWHVPqRFvF4hC4Mg>
Subject: Re: [dmarc-ietf] Tickets 98 and 99 -- fake reports are not a problem and if they were authentication would not help
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, 25 Jan 2021 19:42:00 -0000

So if a newsletter goes to 10,000 Gsuite domains, Google sends 10,000
reports instead of just one?   I don't think either Google or the
newsletter domain would consider that an improvement.   But perhaps they
will speak for themselves.

On Mon, Jan 25, 2021, 2:02 PM Michael Thomas <mike@mtcc.com> wrote:

>
> On 1/25/21 10:55 AM, Douglas Foster wrote:
> > DMARC alignment on the report seems of limited value unless it is
> > aligned to the domain being reported.  But that change would require
> > every unique domain to generate a unique report.   Gsuite and
> > Office365 would probably consider that unacceptable.
> >
> Google already has my signing keys. This is an implementation detail on
> their part. If they want to host a domain, they should host a domain.
> Laziness is not an excuse for spoofing.
>
> Mike
>
> _______________________________________________
> dmarc mailing list
> dmarc@ietf.org
> https://www.ietf.org/mailman/listinfo/dmarc
>

v2.23.0 | Report a Bug | By Email