Arvel Hathcock wrote:
>> Every piece of mail I've sent this morning has validated. Really.
>
> That's because it was all Re: and already had the subject line tag.
> It's your lucky day.
I'm not sure that's correct. The l= in Mike's signatures takes care of
the bits appended by the list to the end. The z= subject value can be
used by verifiers to take care of the subject munging this list
performs.
The DKIM base specification defines the z= parameter.
It does not define what to do with it.
In particular:
The verifier then simply replaces the subject text with the
value from z= that was signed. That's one way of solving the mailing
list subject munging problem.
This goes far beyond the specification. While it might be useful, it is really
a heuristic and it is not part of the draft that is seeking standardization.
d/
--
Dave Crocker
Brandenburg InternetWorking
<http://bbiw.net>
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