IETF Logo Mail Archive

Re: [Uta] SMTP Over TLS on Port 26 - Implicit TLS Proposal

Peter Gutmann <pgut001@cs.auckland.ac.nz> Tue, 08 January 2019 01:50 UTC

Return-Path: <pgut001@cs.auckland.ac.nz>
X-Original-To: uta@ietfa.amsl.com
Delivered-To: uta@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5DCF2130E58 for <uta@ietfa.amsl.com>; Mon, 7 Jan 2019 17:50:23 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.199
X-Spam-Level:
X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_MED=-2.3, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=auckland.ac.nz
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 Qq2y6ha4TwKj for <uta@ietfa.amsl.com>; Mon, 7 Jan 2019 17:50:21 -0800 (PST)
Received: from mx4-int.auckland.ac.nz (mx4-int.auckland.ac.nz [130.216.125.246]) (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 86E35130E54 for <uta@ietf.org>; Mon, 7 Jan 2019 17:50:19 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=auckland.ac.nz; i=@auckland.ac.nz; q=dns/txt; s=mail; t=1546912220; x=1578448220; h=from:to:subject:date:message-id:references:in-reply-to: content-transfer-encoding:mime-version; bh=C4zdJ6WY0d00qVE2hk/Yv35rLparjh+cyL9Y/neM1+A=; b=bmiklqFZwe8iwAIiMSl1FT5mSkAkwAnqO9238j8aOwXdJW53QpZXSuX3 1QjuvS9uL5zooSkjo3NQ/D0P5ThQFvDLUH82TZ5YdFgJtEz9e5XXVr76s d/s3J7H3fcV/BdGWzFlJ+i7HlIqbhsBJCKPVYbvRUQ0GRqWry0VRd000y UseXQelJ3nptKbxM7ZqfG7V1+UIzRa835bJZBWIELFIlkBglYGi5n1T/A l5muKbrUM5ArXkhaHv+3SA2AtDm7KY0sS3SuFo9GfeolYxIer5c03jAER 1IEtax1N0lmuJs4KvD9HTVqn7w5wz9uFItX2G/MDut1zHqTytyz37EyM2 Q==;
X-IronPort-AV: E=Sophos;i="5.56,452,1539601200"; d="scan'208";a="44937930"
X-Ironport-HAT: MAIL-SERVERS - $RELAYED
X-Ironport-Source: 10.6.2.2 - Outgoing - Outgoing
Received: from exchangemx.uoa.auckland.ac.nz (HELO uxcn13-ogg-a.UoA.auckland.ac.nz) ([10.6.2.2]) by mx4-int.auckland.ac.nz with ESMTP/TLS/AES256-SHA; 08 Jan 2019 14:50:14 +1300
Received: from uxcn13-ogg-d.UoA.auckland.ac.nz (10.6.2.5) by uxcn13-ogg-a.UoA.auckland.ac.nz (10.6.2.2) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 8 Jan 2019 14:50:14 +1300
Received: from uxcn13-ogg-d.UoA.auckland.ac.nz ([10.6.2.5]) by uxcn13-ogg-d.UoA.auckland.ac.nz ([10.6.2.5]) with mapi id 15.00.1395.000; Tue, 8 Jan 2019 14:50:14 +1300
From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Alice Wonder <alice@domblogger.net>, "uta@ietf.org" <uta@ietf.org>
Thread-Topic: [Uta] SMTP Over TLS on Port 26 - Implicit TLS Proposal
Thread-Index: AQHUpQ56pxCo6Cqp9E+nwZzUbRCwR6WgVXIAgAAxSgCAAAVLgIAACJcAgAAa8gCAAAWsAIABITQAgADI8QCAAA6JgIAAEECAgAALYYCAABolgIAAIbUAgAAE5wCAAZR4ug==
Date: Tue, 08 Jan 2019 01:50:14 +0000
Message-ID: <1546912211666.74241@cs.auckland.ac.nz>
References: <CAOEezJTyEf+Sn9ZqQPue1DFUSoFO211YogJ6ufYJxswWzXk=_A@mail.gmail.com> <20190106010828.CC431200C5ED52@ary.qy> <CAOEezJShOYkmy8-E+8zG=CPXxrWNcxf8q8W8MnW-v1RT0FzEWw@mail.gmail.com> <123cecc0-aba2-9530-c0d9-b6437f295140@domblogger.net> <88fad90d-24b6-fe4d-5df8-bc294c4f6b33@bluepopcorn.net> <CAOEezJS+T3pP-GqwJFeT=HGbOu1TkY6W0kyjP9_FcVsaJ=hw7A@mail.gmail.com> <b4fe2502-dc1e-5dea-8515-b69ed262ac8f@domblogger.net> <CAOEezJTFxhRYGKQD0a8LLEL7UTPKmfdF5uYLDpZdj3Zm9P+wZw@mail.gmail.com> <35456e82-c149-864f-3312-cff55af68551@domblogger.net> <CAOEezJTTp-VDvChuTcG5yD4yAVe9M0eKZnN11tKXV79O53ai5w@mail.gmail.com> <542346640.18156.1546871078489@appsuite.open-xchange.com>, <98be93f5-a637-3b89-d376-46cb2bcf2f61@domblogger.net>
In-Reply-To: <98be93f5-a637-3b89-d376-46cb2bcf2f61@domblogger.net>
Accept-Language: en-NZ, en-GB, en-US
Content-Language: en-NZ
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [130.216.158.4]
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/uta/TxhRDYEwGcZ4-OWjv3Kp4JxfPZk>
Subject: Re: [Uta] SMTP Over TLS on Port 26 - Implicit TLS Proposal
X-BeenThere: uta@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: UTA working group mailing list <uta.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/uta>, <mailto:uta-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/uta/>
List-Post: <mailto:uta@ietf.org>
List-Help: <mailto:uta-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/uta>, <mailto:uta-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 08 Jan 2019 01:50:24 -0000

Alice Wonder <alice@domblogger.net> writes:

>If it were up to me, an RFC would be published deprecating opportunistic TLS
>for SMTP.

Assuming you're actually serious, why?

Peter.

v2.46.0 | Report a Bug | By Email | System Status