[170854] in North American Network Operators' Group
Re: Yahoo DMARC breakage
daemon@ATHENA.MIT.EDU (Geoffrey Keating)
Thu Apr 10 17:41:06 2014
To: Andrew Sullivan <asullivan@dyn.com>
From: Geoffrey Keating <geoffk@geoffk.org>
Date: 10 Apr 2014 14:40:36 -0700
In-Reply-To: <20140410030056.GB3886@dyn.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Andrew Sullivan <asullivan@dyn.com> writes:
> I think DMARC is mostly useful when used correctly. There is no BCP
> yet...
There is, however, BCP167/RFC6377 covering DKIM and mailing lists.
Some relevant sections are 4.1 and 5.3:
4.1:
... site administrators wishing to
employ ADSP with a "discardable" setting SHOULD separate the
controlled mail stream warranting this handling from other mail
streams that are less controlled, such as personal mail that transits
MLMs [Mailing List Managers].
5.3:
At subscription time, an ADSP-aware MLM SHOULD check for a published
ADSP record for the new subscriber's domain. If the policy specifies
"discardable", the MLM SHOULD disallow the subscription or present a
warning...
