E-mail Authentication for Internationalized Mail

Document Type Replaced Internet-Draft (individual in art area)
Author John Levine 
Last updated 2018-10-27 (latest revision 2018-07-31)
Replaced by RFC 8616
Stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Expired & archived
plain text xml pdf htmlized bibtex
Stream WG state Submitted to IESG for Publication
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-dmarc-eaiauth
Action Holders
Consensus Boilerplate Yes
Telechat date
Responsible AD Alexey Melnikov
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


SPF, DKIM, and DMARC enable a domain owner to publish e-mail authentication and policy information in the DNS. In internationalized e-mail, domain names can occur both as U-labels and A-labels. The Authentication-Results header reports the result of authentication checks made with SPF, DKIM, DMARC, and other schemes. This specification clarifies when to use which form of domain names when using SPF, DKIM, and DMARC and when creating Authentication- Results headers.


John Levine (standards@taugh.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)