Network Working Group K. Andersen Internet-Draft LinkedIn Updates: 4405, 4406, 4407 (if approved) March 22, 2018 Intended status: Informational Expires: September 23, 2018 Status Change for RFCs 4405, 4406, 4407 to Historic draft-andersen-historic-4406-etal-00 Abstract In 2006, two experiments were started for email authentication: Sender Policy Framework (SPF, RFC 4408 [RFC4408]) and Sender ID (RFC 4406 [RFC4406], supported by RFCs 4405 [RFC4405] and 4407 [RFC4407]). After eight years of experimental data (RFC 6686 [RFC6686]), it was clear that SPF remained in widespread use while Sender ID did not. RFC 7208 [RFC7208] moved SPF from Experimental status to Proposed Standard. This document acknowledges that Sender ID did not pass its experiment, and changes the status of RFCs 4405 [RFC4405], 4406 [RFC4406], and 4407 [RFC4407] to Historic. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. 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." This Internet-Draft will expire on September 23, 2018. Copyright Notice Copyright (c) 2018 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 (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents Andersen Expires September 23, 2018 [Page 1] Internet-Draft March 2018 carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Reasoning . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Normative References . . . . . . . . . . . . . . . . . . . . 2 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Reasoning In 2006, two experiments were started for email authentication: Sender Policy Framework (SPF, RFC 4408 [RFC4408]) and Sender ID (RFC 4406 [RFC4406], supported by RFCs 4405 [RFC4405] and 4407 [RFC4407]). After eight years of experimental data (RFC 6686 [RFC6686]), it was clear that SPF remained in widespread use while Sender ID did not. RFC 7208 [RFC7208] moved SPF from Experimental status to Proposed Standard. This document acknowledges that Sender ID did not pass its experiment, and changes the status of RFCs 4405 [RFC4405], 4406 [RFC4406], and 4407 [RFC4407] to Historic. 2. Normative References [RFC4405] Allman, E. and H. Katz, "SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message", RFC 4405, DOI 10.17487/RFC4405, April 2006, . [RFC4406] Lyon, J. and M. Wong, "Sender ID: Authenticating E-Mail", RFC 4406, DOI 10.17487/RFC4406, April 2006, . [RFC4407] Lyon, J., "Purported Responsible Address in E-Mail Messages", RFC 4407, DOI 10.17487/RFC4407, April 2006, . [RFC4408] Wong, M. and W. Schlitt, "Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1", RFC 4408, DOI 10.17487/RFC4408, April 2006, . [RFC6686] Kucherawy, M., "Resolution of the Sender Policy Framework (SPF) and Sender ID Experiments", RFC 6686, DOI 10.17487/RFC6686, July 2012, . Andersen Expires September 23, 2018 [Page 2] Internet-Draft March 2018 [RFC7208] Kitterman, S., "Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1", RFC 7208, DOI 10.17487/RFC7208, April 2014, . Author's Address Kurt Andersen LinkedIn 1000 West Maude Sunnyvale, CA 94085 Phone: +1 208 252 5488 Email: kurta@linkedin.com Andersen Expires September 23, 2018 [Page 3]