Individual submission M. Kucherawy Internet-Draft Cloudmark, Inc. Updates: 5451 (if approved) January 3, 2012 Intended status: Standards Track Expires: July 6, 2012 Authentication-Results Registration Update for SPF Results draft-kucherawy-authres-spf-erratum-00 Abstract This memo updates the registry of authentication method results in Authentication-Results: message header fields, correcting a discontinuity between the original registry creation and the SPF specification. 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 http://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 July 6, 2012. Copyright Notice Copyright (c) 2012 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. 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. Kucherawy Expires July 6, 2012 [Page 1] Internet-Draft Auth-Results SPF Erratum January 2012 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. New 'fail' definition . . . . . . . . . . . . . . . . . . . . . 3 3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3 3.1. Addition of 'Status' Columns . . . . . . . . . . . . . . . 3 3.2. Update to Result Names . . . . . . . . . . . . . . . . . . 3 4. Security Considerations . . . . . . . . . . . . . . . . . . . . 4 5. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5.1. Normative References . . . . . . . . . . . . . . . . . . . 4 5.2. Informative References . . . . . . . . . . . . . . . . . . 4 Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . . 4 Kucherawy Expires July 6, 2012 [Page 2] Internet-Draft Auth-Results SPF Erratum January 2012 1. Introduction [AUTHRES] defined a new header field for electronic mail messages that presents the results of a message authentication effort in a machine-readable format. That Request For Comments created a registry of results for a few message authentication mechanisms, one of which was the Sender Policy Framework [SPF]. The registry contains one entry that is inconsistent with the latter specification, which was noted in an erratum filed with the RFC Editor. This memo updates the IANA registries accordingly. 2. New 'fail' definition The new "fail" result, replacing the existing "hardfail" result for [SPF] (and thus also for [SENDER-ID]) has the same definition for "hardfail" that was used in Section 2.4.2 of [AUTHRES], namely: This client is explicitly not authorized to inject or relay mail using the sender's DNS domain. 3. IANA Considerations This section enumerates requested actions of IANA, per [IANA]. 3.1. Addition of 'Status' Columns IANA is requested to amend the Email Authentication Methods and Email Authentication Result Names registries, both in the Email Authentication Parameters group, by adding to each a column called "Status" that will indicate for each entry its current standards status. Legal values for these columns are: active: The entry is in current use. deprecated: The entry is no longer in current use. New registrations to either table MUST specify one of these values. All exisitng entries, except as specified below, are to be noted as "active" as of publication of this memo. 3.2. Update to Result Names [AUTHRES] listed "hardfail" as the result to be used when a message fails an [SPF] evaluation. However, this latter specification used the string "fail" to denote such failures. Therefore, IANA is requested to mark "hardfail" in the Email Kucherawy Expires July 6, 2012 [Page 3] Internet-Draft Auth-Results SPF Erratum January 2012 Authentication Result Names registry as "deprecated", and amend the "fail" entry as follows: Code: fail Defined: [AUTHRES] Auth Method: spf, sender-id Meaning: [this memo] Section 2 Status: active 4. Security Considerations This memo corrects a registry error. It is possible that older implementations will not recognize or use the corrected entry. Thus, cautious implementers may wish to support both result strings for some period of time. However, it is known that some implementations are already using the SPF-defined result string. 5. References 5.1. Normative References [AUTHRES] Kucherawy, M., "Message Header Field for Indicating Message Authentication Status", RFC 5451, April 2009. [SENDER-ID] Lyon, J. and M. Wong, "Sender ID: Authenticating E-Mail", RFC 4406, April 2006. [SPF] Wong, M. and W. Schlitt, "Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1", RFC 4408, April 2006. 5.2. Informative References [IANA] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008. Appendix A. Acknowledgements The author wishes to acknowledge the following for their review and constructive criticism of this proposal: (names) Kucherawy Expires July 6, 2012 [Page 4] Internet-Draft Auth-Results SPF Erratum January 2012 Author's Address Murray S. Kucherawy Cloudmark, Inc. 128 King St., 2nd Floor San Francisco, CA 94107 US Phone: +1 415 946 3800 EMail: msk@cloudmark.com Kucherawy Expires July 6, 2012 [Page 5]