That's not what RFC5617 says.
Meaning: No valid Author Domain Signature was found on the message
and the published ADSP was "unknown".
Can't that be read as meaning a non-Author Domain Signature was not
expected.
No, not at all. I can't think of any interpretation of that sentence
that would give that meaning.
"No valid Author Domain Signature was found" says nothing about
anything else that might or might not have been found.
"If it rains, then I won't play baseball," says nothing about what
I'll do if it doesn't rain.
Barry, as participant
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