Bill Adragna wrote:
they'll register a domain a day, publish an SPF record,
and tomorrow, do it all over again....
That's actually fine for receivers. An SPF PASS means that
they can accept the mail "on probation" and bounce later if
it turns out to be spam: After an SPF PASS the bounce can't
hit an innocent bystander.
Otherwise an SPF PASS from unknown strangers means nothing,
it only means "can bounce / challenge / reply / ... later".
One of the problems with PRA: A PRA PASS from an unknown
stranger means nothing at all, all auto-responses including
bounces go to the MAIL FROM, and that's not necessarily the
same as the PRA.
Frank
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