DMARC has never been an anti-spam scheme. It's about phishing, which is
not the same thing.
I'm going to have to disagree with you John. DMARC is about preventing
direct domain abuse. It does not specifically address phishing as the bad
guys can simply use cousin domains, homoglyphs, etc.
Well, it's abount a subset of phishing. It's surely more about phishing
than about spam.
R's,
John
PS: on the other hand, if your point is that DMARC impases significant
costs for small and dubious benefits, I wouldn't disagree.
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