I have some basic questions about the implementation of DMARC policies after
reading some of the official documentation.
For "p=quarantine", "rua=mailto:postmas...@example.biz"; (if specified) should
receive periodic spam reports, correct?
If "p=reject", then "ruf=mailto:postmas...@example.biz"; is basically a "bounce
address" for rejected messages, but if "ruf=mailto:"; is not going to be
specified, then why would someone even consider specifying "p=reject" rather
than "p=quarantine"?
Then there is the "pct=xx" parameter for the chosen policy.
Does this mean that the chosen "p=" policy is intended to be applied uniformly
at random (by a probabilistic lottery) to messages that fail the DMARC check,
or by a more sophisticated method designed to catch the "spammiest" xx% of
messages failing the full DMARC check?
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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