ietf-dkim
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Re: [ietf-dkim] Another take on "all email from us is dkim signed"

2009-03-11 16:38:54
Steve Atkins wrote:
If there were another field in the DKIM-Signature header, or an  
entirely separate email header covered by the DKIM signature, that  
stated "all email sent using this domain in the From field will be  
DKIM signed" then any receiving MTA or MTA cluster could keep track of  
that state (probably using their existing reputation tracking system  
in the case of large receivers, and using a fairly trivial extension  
to their DKIM plugins in the case of smaller ones).

   If nothing else, this would make revocation sort of... bizarre
   and unpredictable. The implication is that I'd have to send $you
   mail (for $you == 'universe') to get you to nuke my record in your
   database. Of course every good protocol becomes a control protocol
   for others, but still this seems a little whacked even by that
   standard :)

                Mike
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