Message Header Field for Indicating Message Authentication Status
RFC 7001
| Document | Type |
RFC - Proposed Standard
(September 2013; Errata)
Obsoleted by RFC 7601
Updated by RFC 7410
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-kucherawy-rfc5451bis | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication (wg milestone: Jun 2013 - Publication requeste... ) | |
| Document shepherd | S Moonesamy | ||
| Shepherd write-up | Show (last changed 2013-07-09) | ||
| IESG | IESG state | RFC 7001 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Barry Leiba | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) M. Kucherawy Request for Comments: 7001 September 2013 Obsoletes: 5451, 6577 Category: Standards Track ISSN: 2070-1721 Message Header Field for Indicating Message Authentication Status Abstract This document specifies a message header field called Authentication- Results for use with electronic mail messages to indicate the results of message authentication efforts. Any receiver-side software, such as mail filters or Mail User Agents (MUAs), can use this header field to relay that information in a convenient and meaningful way to users or to make sorting and filtering decisions. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7001. Copyright Notice Copyright (c) 2013 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 Standards Track [Page 1] RFC 7001 Authentication-Results Header Field September 2013 Table of Contents 1. Introduction ....................................................3 1.1. Purpose ....................................................4 1.2. Trust Boundary .............................................5 1.3. Processing Scope ...........................................6 1.4. Requirements ...............................................6 1.5. Definitions ................................................6 1.5.1. Key Words ...........................................6 1.5.2. Security ............................................6 1.5.3. Email Architecture ..................................7 1.5.4. Other Terms .........................................8 1.6. Trust Environment ..........................................8 2. Definition and Format of the Header Field .......................9 2.1. General Description ........................................9 2.2. Formal Definition ..........................................9 2.3. The "policy" ptype ........................................12 2.4. Authentication Identifier Field ...........................13 2.5. Version Tokens ............................................14 2.6. Defined Methods and Result Values .........................14 2.6.1. DKIM and DomainKeys ................................14 2.6.2. SPF and Sender ID ..................................15 2.6.3. "iprev" ............................................17 2.6.4. SMTP AUTH ..........................................17 2.6.5. Other Registered Codes .............................18 2.6.6. Extension Methods ..................................18 2.6.7. Extension Result Codes .............................19 3. The "iprev" Authentication Method ..............................19 4. Adding the Header Field to a Message ...........................20 4.1. Header Field Position and Interpretation ..................22 4.2. Local Policy Enforcement ..................................23 5. Removing Existing Header Fields ................................23 6. IANA Considerations ............................................24 6.1. The Authentication-Results Header Field ...................25 6.2. "Email Authentication Methods" Registry ...................25 6.3. "Email Authentication Result Names" Registry ..............26 7. Security Considerations ........................................26 7.1. Forged Header Fields ......................................26 7.2. Misleading Results ........................................28Show full document text