IETF Logo Mail Archive

Re: [dmarc-ietf] Ratchets - Disallow PCT 1-99

Steve Siirila <sfs@umn.edu> Wed, 21 July 2021 13:54 UTC

Return-Path: <sfs@umn.edu>
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 65A3B3A1896 for <dmarc@ietfa.amsl.com>; Wed, 21 Jul 2021 06:54:03 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.396
X-Spam-Level:
X-Spam-Status: No, score=-4.396 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, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_NONE=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=umn.edu
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 kU5iAOdJpKPR for <dmarc@ietfa.amsl.com>; Wed, 21 Jul 2021 06:53:58 -0700 (PDT)
Received: from mta-p8.oit.umn.edu (mta-p8.oit.umn.edu [134.84.196.208]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EEFFF3A1894 for <dmarc@ietf.org>; Wed, 21 Jul 2021 06:53:57 -0700 (PDT)
Received: from localhost (unknown [127.0.0.1]) by mta-p8.oit.umn.edu (Postfix) with ESMTP id 4GVH9w3lWSz9vFK8 for <dmarc@ietf.org>; Wed, 21 Jul 2021 13:53:56 +0000 (UTC)
X-Virus-Scanned: amavisd-new at umn.edu
Received: from mta-p8.oit.umn.edu ([127.0.0.1]) by localhost (mta-p8.oit.umn.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YH70J2AzYEvc for <dmarc@ietf.org>; Wed, 21 Jul 2021 08:53:56 -0500 (CDT)
Received: from mail-lf1-f71.google.com (mail-lf1-f71.google.com [209.85.167.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mta-p8.oit.umn.edu (Postfix) with ESMTPS id 4GVH9w0YMCz9vFJb for <dmarc@ietf.org>; Wed, 21 Jul 2021 08:53:55 -0500 (CDT)
DMARC-Filter: OpenDMARC Filter v1.3.2 mta-p8.oit.umn.edu 4GVH9w0YMCz9vFJb
DKIM-Filter: OpenDKIM Filter v2.11.0 mta-p8.oit.umn.edu 4GVH9w0YMCz9vFJb
Received: by mail-lf1-f71.google.com with SMTP id u2-20020ac248a20000b0290384997a48fcso423262lfg.21 for <dmarc@ietf.org>; Wed, 21 Jul 2021 06:53:55 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=umn.edu; s=google; h=mime-version:from:date:message-id:subject:to; bh=96+DVc+cVWR4bz5Y5GPS98DPKuoO0aEM6SXkY8rl0wY=; b=KUfL7p8CxeIzK5d65BfriQwaJPUpaRK4xNY+FzEBjWBGqODffz4/CpV0RVXUBhvTYO gVIMzfjDjpP3gE3ESekLMamvsV7mv4SJRcJEFSkkdMLmcMeWPGR1aZv044Gucd32INId se8d+IaCItahcDCIvj1C9erOlCfj58J9SypwHNBvRQOpMJ/xmqtU3qSmIl3DRcf/7cnE 226Fl5wDj/HaKDfx+oocNYiN7jxDA2Az+5vce7hUgUveYeJQwxiyfAaByQ4VYynfeuG+ eIerRoPTTtHUbrBuIOe03XxlqDy08rItFKNKjROX5uGnb+6Kk52K0yX80zrqLG8OOdkV oFNg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=96+DVc+cVWR4bz5Y5GPS98DPKuoO0aEM6SXkY8rl0wY=; b=D3KLHg+VQDsz3Q5z0dAgr5cIt94ERkpn6UprGOjtuPhpgKlhddPwVbH2XuyDSb14op 7diU3uq/zF/GVvrE1bYsTFPMIBNdYKZsW7JX4o+qWVvwIg+bIwNWDfwhxMTVTCr258dB 1tz3dinq3Hl0WBfxEXGBtxaT9aSPQ7WAhRoWC5RGsdrlm6x/mC1ASd3cP4BJ2H67PGi4 06Ko+6/n6BVxHx4Qwk0sd1MQUJQadCIXsM7iIoTBevzWFpId5LErzoP4HpPgX1PMGn0b MhZPxjazgj30oHcJz6zPNvKsq+mezZmZVkWXxo7cKU9M9zWIRDwMQvX4VmD+C3zZ/XR/ xIFQ==
X-Gm-Message-State: AOAM533FuqMI0ytHd+rYccrJQfLiICKQwniRzDIyShSjO/nDEmu4N9OW ZV3swX+gAIzy/T8SbXrVMK+yBKZPkW0W5hfJzpGzqD0nbkLVUEvn1neSDZcWSDzzpJ8Zpdj3GYP XcT87wVp5nAccApHSGEHLrHKylQ==
X-Received: by 2002:a05:6512:3f17:: with SMTP id y23mr25398918lfa.406.1626875634000; Wed, 21 Jul 2021 06:53:54 -0700 (PDT)
X-Google-Smtp-Source: ABdhPJwn/LIlPa5rBNvWBCkMpIsJtcMFw4b8vaCg/A7/vHJCcrrBFEFrJFQFwSMVCL5fdhqHF+vb8d/tsg6btTLSecY=
X-Received: by 2002:a05:6512:3f17:: with SMTP id y23mr25398885lfa.406.1626875633354; Wed, 21 Jul 2021 06:53:53 -0700 (PDT)
MIME-Version: 1.0
From: Steve Siirila <sfs@umn.edu>
Date: Wed, 21 Jul 2021 08:53:42 -0500
Message-ID: <CAFAdyFoN2D0rg3Lfxq8amkAZbRXz=3uWz_DPnxzqLJr4__WR-w@mail.gmail.com>
To: dmarc@ietf.org
Content-Type: multipart/alternative; boundary="0000000000003861e005c7a280b8"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/bEdk1uJjeUAbtAJcaSqX_QnuK3o>
Subject: Re: [dmarc-ietf] Ratchets - Disallow PCT 1-99
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: Wed, 21 Jul 2021 13:54:04 -0000

At the University of Minnesota we used p=quarantine,pct=0 as a transition
between p=none and p=quarantine,pct=100 as it causes header "From:" to be
rewritten on DMARC-aware mailing list servers.  I agree with Laura Atkins
that removing pct=0 will make DMARC implementation more difficult for some
organizations.

v2.23.0 | Report a Bug | By Email