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Title : DKIM Third-Party Authorization for Sender Signer Practices
Author(s) : D. Otis
Filename : draft-otis-dkim-tpa-ssp-00.txt
Pages : 13
Date : 2007-6-28
TPA-SSP (DKIM Third-Party Authorization for Sender Signing Practices)
is a DNS-based label prefix mechanism to provide a means to authorize
Third-Party signing domains in a scalable fashion. This mechanism
eliminates complex coordination of selector/key DNS records, DNS zone
delegation, or exchanges of public/private keys otherwise required to
facilitate desired authorizations. Checking Sender Signing Practices
occurs in common cases where an originating email-address of concern
is not within a DKIM signing domain. In which case, the email-
address has not been signed, or is signed by a Third-Party domain.
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