Yahoo DMARC breakage
geoffk at geoffk.org
Thu Apr 10 21:40:36 UTC 2014
Andrew Sullivan <asullivan at dyn.com> writes:
> I think DMARC is mostly useful when used correctly. There is no BCP
There is, however, BCP167/RFC6377 covering DKIM and mailing lists.
Some relevant sections are 4.1 and 5.3:
... 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].
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
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