Technical Summary
RFC 5451 defined a new header field for electronic mail messages
that presents the results of a message authentication effort in a
machine-readable format. In the interim, a proposal for rudimentary
domain-level reputation called Vouch By Reference [RFC 5518] was
published and is now beginning to see popular use.
This memo updates the registry of properties in Authentication-
Results: message header fields to allow relaying of the results of a
Vouch By Reference query.
Working Group Summary
Nothing to note. This is not a WG document.
Document Quality
This has been implemented for some time in opendkim, an open-source
package supported by the document author. The Spamhaus domain
whitelist is providing market pressure for more implementations,
as the authentication-results header field itself receives wider deployment.
Personnel
Barry Leiba is the Document Shepherd for this document.
Alexey Melnikov is the Responsible Area Director.