[ietf-dkim] The URL to my paper describing the DKIM policy options

[Arvel Hathcock]

 > Especially since one can achieve that same effect by having an SSP
 > that says "I sign" everything and then don't sign any email.

One can achieve the same effect perhaps but it's not as easy to 
understand or explain:

Potential customer question: "How do I communicate that I don't send mail?"

Answer: "You imply in your policy that, in fact, you do send mail, that 
all such mail must be signed, but then because there won't be any 
signatures you'll achieve your goal."

Customer scratches head: "Why not just a binary flag that says 'I don't 
send mail'?"

-- 
Arvel