Steve,
The discussion is not over what recipient behavior in that
case will actually be (reject or discard it because it's
claiming to come from someone who doesn't exist), rather
it's over whether the ADSP spec needs to prescribe that
behavior.
Then we are (once again) counting angels on the head of a pin. Many
people will read this specification and attempt to discern behavior for,
if nothing else, diagnostic purposes. Nobody has answered the basic
question of what harm would be caused with the text being left in. And
everyone agrees it's the right thing to do.
Eliot
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