Network Working Group S. Moonesamy Internet Draft February 20, 2009 Intended status: Informational Obsoletes: 4405, 4406, 4407, 4408 (if approved) Expires: August 19, 2009 Reclassification of Sender ID and SPF to Historic Status draft-moonesamy-senderid-spf-historic-00.txt Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on August 19, 2009. Copyright Notice Copyright (c) 2009 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Abstract This memo reclassifies RFC 4405, SMTP Service Extension for S. Moonesamy Expires: August 2009 [Page 1] Internet Draft Sender ID and SPF to Historic February, 2009 Indicating the Responsible Submitter of an E-Mail Message, RFC 4406, Sender ID: Authenticating E-Mail, RFC 4407, Purported Responsible Address in E-Mail Messages and RFC 4408, Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1 to Historic status. This memo also obsoletes RFC 4405, RFC 4406, RFC 4407, and RFC 4408. S. Moonesamy Expires: August 2009 [Page 2] Internet Draft Sender ID and SPF to Historic February, 2009 1. Introduction In April 2006, RFC 4405, SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message, RFC 4406, Sender ID: Authenticating E-Mail, RFC 4407, Purported Responsible Address in E-Mail Messages and RFC 4408, Sender Policy Framework (SPF) were published simultaneously as Experimental RFCs. There was no general technical consensus about how to reconcile the two approaches known as Sender ID [RFC4406] and SPF [RFC4408]. This memo recommends that the RFCs specifying the Sender ID and SPF experiments, the SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message [RFC4405] and the Purported Responsible Address in E-Mail Messages [RFC4407] be moved to Historic. It also proposes obsoleting the "Received-SPF:" header field defined in RFC 4408 [RFC4408]. 2. Reclassification to Historic Status The Sender ID experiment reuses DNS records that may have been created for SPF. Depending on the content of the record, this may mean that Sender ID heuristics can be applied incorrectly to a message. Participants publishing SPF experiment DNS records may also be affected if they do not publish Sender ID DNS records. These two conflicting experiments can lead to delivery failures or loss of mail. The community was invited to observe the success or failure of the two approaches during the two years following publication of the Experimental RFCs. Since it is over two years and as there is an interoperability problem, it is recommended that the Sender ID and SPF experiments be concluded. Therefore, RFC 4405, RFC 4406, RFC 4407, and RFC 4408 are reclassified to Historic status. RFC 4405, RFC 4406, RFC 4407, and RFC 4408 can also be considered as obsolete. 3. Security Considerations Reclassification of RFC 4405, RFC 4406, RFC 4407, and RFC 4408 to Historic will not have any negative effect on the security of the Internet. 4. IANA Considerations It is requested that IANA update the "Received-SPF:" header field S. Moonesamy Expires: August 2009 [Page 3] Internet Draft Sender ID and SPF to Historic February, 2009 registration [RFC4408] in the IANA Permanent Message Header Field Registry [RFC3864]. Header field name: Received-SPF Applicable protocol: Mail Status: obsoleted Author/Change controller: IETF Specification document(s): RFC 4408, RFC XXXX 5. References 5.1. Normative References [RFC3864] Klyne, G., Nottingham, M., and J. Mogul, Registration Procedures for Message Header Fields, BCP 90, RFC 3864, September 2004. 5.2. Informative References [RFC4405] Allman E. and H. Katz, "SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message", RFC 4405, April 2006. [RFC4406] Lyon, J. and M. Wong, "Sender ID: Authenticating E-Mail", RFC 4406, April 2006. [RFC4407] Lyon, J., "Purported Responsible Address in E-Mail Messages", RFC 4407, April 2006. [RFC4408] Wong, M. and W. Schlitt, "Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1", RFC 4408, April 2006. Author's Address S. Moonesamy 76, Ylang Ylang Avenue Quatre Bornes Mauritius Email: sm+ietf@elandsys.com S. Moonesamy Expires: August 2009 [Page 4]