The IESG has approved the following document: - 'Resolution of The SPF and Sender ID Experiments' (draft-ietf-spfbis-experiment-11.txt) as Informational RFC This document is the product of the SPF Update Working Group. The IESG contact persons are Pete Resnick and Barry Leiba. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-spfbis-experiment/ Technical Summary In 2006 the IETF published a suite of protocol documents comprising SPF and Sender ID, two proposed email authentication protocols with Experimental status. After six years, sufficient experience and evidence have been collected that the experiments thus created can be considered concluded. This document presents those findings. Working Group Summary The SPFBIS working group had a difficult task ahead as it was not clear how to conclude the SPF and Sender ID Experiments and how to address the IESG Notes in RFC 4405, RFC4406, RFC4407, and RFC4408. There were discussions about how to proceed. Only one proposal was submitted and it was adopted by the working group. The discussions about the RRTYPE 99 DNS Resource Record were controversial. The issue was resolved. There was consensus that Sender ID re-use of SPF DNS Resource Records does not have to be called out in the document. This document represents a best effort by the SPFBIS working group to conclude the experiments which were documented in the above-mentioned RFCs. Document Quality The document does not specify a protocol. The document was reviewed by the SPFBIS working group. Barry Leiba, as an individual, and Dave Crocker performed a thorough review of the document. Personnel S. Moonesamy is the Document Shepherd for this document. Pete Resnick is the Responsible Area Director.