Domain Keys Identified Mail (DKIM, RFC 6376) currently has an IETF
standards status of Draft Standard, which is now an obsolete status.
This note requests reclassifying it to Internet Standard.

   (1) There are at least two independent interoperating implementations
       with widespread deployment and successful operational experience.

DKIM is in large-scale production use around the Internet, and there are
many independent implementations of DKIM.  See http://dkim.org/deploy/

   (2) There are no errata against the specification that would cause a
       new implementation to fail to interoperate with deployed ones.

There is only one, non-substantive erratum against an example in the
DKIM specification: http://www.rfc-editor.org/errata_search.php?rfc=6376

   (3) There are no unused features in the specification that greatly
       increase implementation complexity.

The -bis effort that produced RFC 6374 at Draft Standard refined the
document against implementation and deployment experience, and
eliminated unused features.

   (4) If the technology required to implement the specification
       requires patented or otherwise controlled technology, then the
       set of implementations must demonstrate at least two independent,
       separate and successful uses of the licensing process.

The Yahoo! IPR declaration does not require users of the technology to pursue special procedures, such as licensing: http://datatracker.ietf.org/ipr/693/