Re: [dane] email canonicalization for SMIMEA owner names

"John Levine" <johnl@taugh.com> Fri, 12 December 2014 04:32 UTC

Return-Path: <johnl@taugh.com>
X-Original-To: dane@ietfa.amsl.com
Delivered-To: dane@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CA7891A6F9A for <dane@ietfa.amsl.com>; Thu, 11 Dec 2014 20:32:32 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 0.862
X-Spam-Level:
X-Spam-Status: No, score=0.862 tagged_above=-999 required=5 tests=[BAYES_20=-0.001, HELO_MISMATCH_COM=0.553, HOST_MISMATCH_NET=0.311, SPF_PASS=-0.001] autolearn=no
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 SKD44WAr0YlY for <dane@ietfa.amsl.com>; Thu, 11 Dec 2014 20:32:32 -0800 (PST)
Received: from miucha.iecc.com (abusenet-1-pt.tunnel.tserv4.nyc4.ipv6.he.net [IPv6:2001:470:1f06:1126::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E41451A1A91 for <dane@ietf.org>; Thu, 11 Dec 2014 20:32:31 -0800 (PST)
Received: (qmail 25663 invoked from network); 12 Dec 2014 04:32:27 -0000
Received: from miucha.iecc.com (64.57.183.18) by mail1.iecc.com with QMQP; 12 Dec 2014 04:32:27 -0000
Date: 12 Dec 2014 04:32:08 -0000
Message-ID: <20141212043208.11432.qmail@ary.lan>
From: "John Levine" <johnl@taugh.com>
To: dane@ietf.org
In-Reply-To: <alpine.LFD.2.10.1412112102170.23084@bofh.nohats.ca>
Organization:
X-Headerized: yes
Mime-Version: 1.0
Content-type: text/plain; charset=utf-8
Content-transfer-encoding: 8bit
Archived-At: http://mailarchive.ietf.org/arch/msg/dane/rk8xraDpKhMKQDYJ3SfvlkAVk38
Subject: Re: [dane] email canonicalization for SMIMEA owner names
X-BeenThere: dane@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DNS-based Authentication of Named Entities <dane.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dane>, <mailto:dane-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dane/>
List-Post: <mailto:dane@ietf.org>
List-Help: <mailto:dane-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dane>, <mailto:dane-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 12 Dec 2014 04:32:33 -0000

>> If I say I'm foo@bar.example, and you type Foo@bar.example into your
>> MUA to send me e-mail, you might not reach me.
>>
>> That seems fair.
>
>Actually, that is really stupid, ...

This time I completely agree with Paul.

>And someone should write an RFC updating SMTP to not allow
>case-sensitivity for different mailboxes so we can stop coming back to
>this whenever anyone wants to do anything with email addresses.

It's 30 years too late for that.  The situation we're in here is
fairly peculiar, in that clients other than the recipient MTA are
trying to interpret the mailbox name.  Previous mail protocol hacks
have carefully avoided that.

R's,
John