On Thu 10/Nov/2022 16:51:41 +0100 John R Levine wrote:
We have never agreed what to do about From: header fields that have more
than one address. My inclination is to say DMARC doesn't apply since they
are so rare and there is poor agreement about what they mean, particularly
if the addresses are in different domains.
What does it mean "doesn't apply" in terms of none/ pass/ fail/ policy/
neutral/ temperror/ permerror?
I take it back, we have agreed. See section 5.7.1 of the current draft.
It says:
Multi-valued RFC5322.From header fields with multiple domains
MUST be exempt from DMARC checking.
Does it mean that it is enough to add a second mailbox in order to have the
failure of the relevant DKIM signature become unmeaningful and accept with
dmarc=none?
Best
Ale
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