What happens if you do the same thing, but put the "To:" header above the
"From:" headers? What about when it's between the two "From:" headers?
Actually, the chairs would rather take this off the DKIM mailing list,
as out of the group's scope. If some folks want to go do some testing
about what different DKIM verifiers do in these situations, and post a
summary report afterward, that's fine. But let's not focus the
group's attention on ongoing experiments.
We're all well aware that
1. a message with multiple "from" headers is not in compliance with
the standards, and
2. when presented with a non-compliant message, different MDAs and
MUAs (and possibly MTAs) will do different, inconsistent things,
including rejecting or discarding the message, altering it to try to
make it compliant, accepting it as is but displaying it in
unpredictable ways, and so on.
We also seem to agree that we have to address this situation in the
spec. For this group's purpose, what matters is the text we put into
the document. Let's stick to getting consensus on that.
Barry, as chair
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