[ietf-dkim] NO DKIM "POLICY"

What is the current recommended method to establish or expose that a 
DOMAIN should not be signed, is not expected to be signed and that any 
DKIM supportive receiver seeing a message with a signature from a 
purported domain should be rejected with full confidence?

Will a NULL public key do the trick?

Thanks

-- 
Sincerely

Hector Santos
http://www.santronics.com


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