[170801] in North American Network Operators' Group
Re: Yahoo DMARC breakage
daemon@ATHENA.MIT.EDU (Jeff Kell)
Wed Apr 9 17:49:55 2014
Date: Wed, 9 Apr 2014 17:49:27 -0400
From: Jeff Kell <jeff-kell@utc.edu>
To: <Valdis.Kletnieks@vt.edu>, William Herrin <bill@herrin.us>
In-Reply-To: <19726.1397078684@turing-police.cc.vt.edu>
Cc: John Levine <johnl@iecc.com>, "nanog@nanog.org" <nanog@nanog.org>,
Dave Crocker <dcrocker@bbiw.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 4/9/2014 5:24 PM, Valdis.Kletnieks@vt.edu wrote:
> On Wed, 09 Apr 2014 17:15:59 -0400, William Herrin said:
>
>> Meh. This just means list software will have to rewrite the From
>> header to "From: John Levine <nanog@nanog.org>" and rely on the
>> Reply-To header for anybody who wants to send a message back to the
>> originator.
>>
>> Maybe this is a good thing - we can stop getting all the "sorry I'm
>> out of the office" emails when posting to a list.
>
> The sort of programmer that writes out-of-mind software that doesn't
> employ the long well-known heuristics for detecting mailing lists
> (starting with checking Return-Path: for "owner-" and similar) will also
> likely disregard the Reply-To: header. This Is Not A Good Thing.
The most "sane" out-of-mind response should only be sent *if* the
out-of-mind person is named explicitly as a recipient in the RFC822
header. Anything To: somelist@somehost does not qualify :)
Jeff
