Whatever SSP does (and the more interesting case is a "Bob"
who is completely DKIM-unaware), the mail should not be
rejected by the next receiver(s) ...
Dave, I'm completely confused. The constraint of requirement 12 is a
constraint on the protocol design in the form of "don't provide
this". It's not telling the receiver to do anything.
Definitely a good distinction to make clear.
Unfortunately, I do not see how the language "the mail should not be
rejected" is a constraint on protocol design, only. It strikes me as an
explicit directive to an operational receiver.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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