John R Levine wrote:
My question is how does the age of the log entry or signature affect its
credibility and usefulness. In the presence of x= or a fixed time limit,
how much more credible is the entry two seconds before the time limit ends
relative to two seconds after?
If the answer is "not very", that tells me that both x= and fixed time
limits are a mistake.
That may well be true, but the credibility of a DKIM signature
in a court, or a year after signing, is explicitly not in scope
of this WG according to our charter.
Stephen.
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