Hi Ted,
I don't think adding explicit interactions with DKIM is appropriate for this document,
which is a high-level informational document on the set of problems of adapting
OPES (developed in a bidirectional model) to SMTP, which has very different
usage.
The reason I'm concerned is that any form of OPES might invalidate a
DKIM signature. What can we say in a DKIM sense about OPES trace
information? In addition, an OPES server might choose to resign a
message with DKIM. However, we in the DKIM group wouldn't at this point
know what to do with that. But it might be a consideration for SSP as
an authorized third party signature. Anyway, my point is that there are
considerations here that have not been thought out (at least not by me ;-).
Eliot
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