In article
<5da0fca6-7eb3-4db6-8a71-16fce69e67e6(_at_)gulbrandsen(_dot_)priv(_dot_)no>
you write:
I may be stupid here, but why does dmarc even apply to messages with a
List-Id? Right now I can't think of any case where it makes sense to use
both List-Id and DMARC.
What do you think would happen if a List-ID: tag was a free pass
through spam filters?
When did DMARC become the only anti-spam mechanism in the world? Nowhere did
Arnt say that messages containing a list-id should be exempted from all forms
of AS/AV processing, only that DMARC in particular isn't useful in this case.
FWIW, I agree with Arnt on this one. In fact the case has yet to be made that
DKIM-based whitelisting of list mail is more than a nice-to-have; per-user
whitelisting on the basis of List-id alone along with the usual checks for
blatent viruses and whatnot seems to work pretty well.
Ned
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