IETF Logo Mail Archive

Re: [dmarc-ietf] Lookup Limitations For Public Suffix Domains

Tim Wicinski <tjw.ietf@gmail.com> Sat, 01 December 2018 01:06 UTC

Return-Path: <tjw.ietf@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 F02B312958B for <dmarc@ietfa.amsl.com>; Fri, 30 Nov 2018 17:06:26 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.999
X-Spam-Level:
X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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 ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5QVQ7_LS_im9 for <dmarc@ietfa.amsl.com>; Fri, 30 Nov 2018 17:06:25 -0800 (PST)
Received: from mail-it1-x12c.google.com (mail-it1-x12c.google.com [IPv6:2607:f8b0:4864:20::12c]) (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 3E691128CB7 for <dmarc@ietf.org>; Fri, 30 Nov 2018 17:06:25 -0800 (PST)
Received: by mail-it1-x12c.google.com with SMTP id i145so1317382ita.4 for <dmarc@ietf.org>; Fri, 30 Nov 2018 17:06:25 -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 :cc; bh=w7A5x23ApCci/sC3jjLSxtz2r/tHmzrHUI3JJ01Y+mI=; b=JxynrNG92JzmqO5hVF7dUpy+9VH3GyVHARmu4ivSvys/GvM6uxFadzSmsLaUdDLi1B BeVAIlrRbL7ku4S8N4cPSEtJZSI4HIVmd92EKFNMmtroJtvxkrGZe/r2vdRyENKIyOgd 358wdmXpq7rl1VYajZuEgN9cN478aMfWd5hHbnhC5gitldm3TAnSLfqBqRjVj30suw7c Qwc9jsAof0pDl+vz5KeFnMEmrTxVIYgP/Y6FO6Qn8LJd15HyPT48zypqkcCr03lhAU0h XTkdhK4H+P13XMPR54fBDhLeQDZfYzZufsDSLiUQx9VfihvT+FXghvgEP5dJlo14dvS5 tHSg==
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:cc; bh=w7A5x23ApCci/sC3jjLSxtz2r/tHmzrHUI3JJ01Y+mI=; b=ADymwT/AAR20StXmJ3iGMKkrg2vBWM3KzfMe1NEwQSnu3Z5BomAQCJ8+ohguikJ7Cl B6wDaEO43NSMbL6bFQtTR952Clcfob6GytNFQGOiQASc6Fd2SMPcHztBeYNcN+b9118/ krzeJx/lMOfoA568j4H14dO9jTiIsYpyLO+qCtVo9J+9lA0yjYj0dd37W5EZq1cojbVu rz1pSw6C7XXsQTZBo1DY5lOZsh/sVvbkjCLfDsN2rBbuyhL3vStNml1ZMKvQYwSNvsG0 XD88SlCvuti2TBzlC1DGMXJ4FGDokb90qFw+QqimJbOuOnC3Vgf1MFT+vF4nC87i7Lnp TPAA==
X-Gm-Message-State: AA+aEWYbLP8TixBFlI/fL1GFMHpeuXUDwOHZ6pFGoZ4Nv2c/LzJ6uqho +1KopNzg48pnzSe/9L1B+aa7SYIrEQ++V5MxO4mpqgvX
X-Google-Smtp-Source: AFSGD/Wnb8ul0fB3eBjMM8pOAkFsxQutmwIjee/+5RsRCIwVa5Ai7RiYTMDWsbgxZIhsHQs5Oc3yzVooFfAOXPmMBAc=
X-Received: by 2002:a02:6019:: with SMTP id i25mr7443068jac.137.1543626384415; Fri, 30 Nov 2018 17:06:24 -0800 (PST)
MIME-Version: 1.0
References: <20181201003301.1DFFA200915FC3@ary.qy> <6368515.cyHHj4lf58@kitterma-e6430>
In-Reply-To: <6368515.cyHHj4lf58@kitterma-e6430>
From: Tim Wicinski <tjw.ietf@gmail.com>
Date: Fri, 30 Nov 2018 20:06:17 -0500
Message-ID: <CADyWQ+ECVcmGMaxNgwL6a+j8dR4LcTNJMMS7G8ufOiataZULuQ@mail.gmail.com>
To: Scott Kitterman <sklist@kitterman.com>
Cc: dmarc@ietf.org
Content-Type: multipart/alternative; boundary="0000000000004f1f8e057beb86bd"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/x8APHpFGPUl9wMzDDVjfSA4HdYs>
Subject: Re: [dmarc-ietf] Lookup Limitations For Public Suffix Domains
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: Sat, 01 Dec 2018 01:06:27 -0000

https://www.ietf.org/archive/id/draft-levine-dbound-dns-01.txt



On Fri, Nov 30, 2018 at 8:04 PM Scott Kitterman <sklist@kitterman.com>
wrote:

> On Friday, November 30, 2018 07:33:00 PM John Levine wrote:
> > In article <3881693.rR9BVk4Dlq@kitterma-e6430> you write:
> > >2.  Externalize signaling about PSD participation.  As discussed in the
> > >Privacy Considerations (section 4.1), we were concerned about the
> privacy
> > >implications of feedback on organizational domain traffic for
> > >organizational domains that don't participate in DMARC being
> > >inappropriately captured by public suffix operators.
> >
> > It seems to me this horse left the barn a long time ago.  Mail systems
> > routinely check domains in HELO and in MAIL FROM against DNSBLs, which
> > is at least as loggy as anything a DNS version of this check will do.
> >
> > Also, if you really want to keep people from logging your queries, you
> > can set up a local mirror of the DNS zone, and update it in the usual
> > way with AXFR and IXFR.  Whatever one might have in mind for a text
> > version of this, a binary AXFR would be about as fast and IXFR of just
> > the occasional change faster.
> >
> > Take a look at my DBOUND proposal.  I think it would be just the
> > ticket for this application.
>
> I've lost track.  Which draft was that?
>
> I don't agree that a situation being bad is a reasonable reason not to try
> and
> keep it from getting worse.  I think the implications of the DMARC
> feedback
> reports are greater than logging queries.
>
> Scott K
>
> _______________________________________________
> dmarc mailing list
> dmarc@ietf.org
> https://www.ietf.org/mailman/listinfo/dmarc
>

v2.27.8 | Report a Bug | By Email | System Status