A Property Types Registry for the Authentication-Results Header Field
draft-ietf-appsawg-authres-ptypes-registry-03

The information below is for an old version of the document
Document Type Active Internet-Draft (appsawg WG)
Author Murray Kucherawy 
Last updated 2014-09-30 (latest revision 2014-09-16)
Replaces draft-kucherawy-authres-ptypes-registry
Stream IETF
Intended RFC status Proposed Standard
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Document shepherd Scott Kitterman
Shepherd write-up Show (last changed 2014-09-15)
IESG IESG state Waiting for AD Go-Ahead
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Responsible AD Barry Leiba
Send notices to appsawg-chairs@tools.ietf.org, draft-ietf-appsawg-authres-ptypes-registry@tools.ietf.org, scott@kitterman.com
IANA IANA review state IANA - Not OK
Individual submission                                       M. Kucherawy
Internet-Draft                                        September 16, 2014
Updates: 7001 (if approved)
Intended status: Standards Track
Expires: March 20, 2015

 A Property Types Registry for the Authentication-Results Header Field
             draft-ietf-appsawg-authres-ptypes-registry-03

Abstract

   This document updates RFC7001 by creating a registry for property
   types in the Authentication-Results header field, used in email
   authentication work, rather than limiting participants to using the
   original, small set of fixed values.

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
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   This Internet-Draft will expire on March 20, 2015.

Copyright Notice

   Copyright (c) 2014 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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Updated 'ptype' Definition  . . . . . . . . . . . . . . . . . . 3
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
   4.  Security Considerations . . . . . . . . . . . . . . . . . . . . 4
   5.  Normative References  . . . . . . . . . . . . . . . . . . . . . 5
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . . . 5

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1.  Introduction

   [RFC7001] defines the email Authentication-Results header field that
   presents the results of an authentication effort in a machine-
   readable format.  The header field creates a place to collect the
   output from authentication processes that are disjoint from later
   processes that might use the output, such as analysis, filtering or
   sorting mechanisms.

   The specification in that document enumerated a small set of types of
   properties that can be reported using this mechanism.  There has
   emerged a desire to report types of properties about a message
   through this mechanism.  Accordingly, this document updates the
   specification to allow for additional property types ("ptypes")
   beyond the original set, and creates a registry where new ones can be
   listed and their defining documents referenced.

2.  Updated 'ptype' Definition

   Advanced Backus Naur Form (ABNF) is defined in [RFC5234].

   The ABNF in Section 2.2 of [RFC7001] is updated as follows:

       ptype = Keyword
             ; indicates whether the property being evaluated was
             ; a parameter to an [SMTP] command, was a value taken
             ; from a message header field, was some property of
             ; the message body, or was some other property evaluated by
             ; the receiving Message Transfer Agent (MTA)

   The ABNF token "Keyword" is defined in Section 4.1.2 of [RFC5321].

   Legal values of "ptype" are as defined in the IANA "Email
   Authentication Property Types" registry (see Section 3).  The initial
   values are as follows, matching those defined in [RFC7001]:

   body:  Indicates information that was extracted from the body of the
      message.  This might be an arbitrary string of bytes, a hash of a
      string of bytes, a Uniform Resource Identifier, or some other
      content of interest.

   header:  Indicates information that was extracted from the header of
      the message.  This might be the value of a header field or some
      portion of a header field.

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