YAM Working Group                                             P. Resnick
Internet-Draft                                     Qualcomm Incorporated
Intended status: Informational                              May 22, 2010
Expires: November 23, 2010


   Preliminary Evaluation of RFC 5322 "Internet Message Format", for
  advancement from Draft Standard to Full Standard by the YAM Working
                                 Group
            draft-ietf-yam-rfc5322bis-msgfmt-pre-evaluation-00

Abstract

   This memo is a preliminary evaluation of RFC 5322 "Internet Message
   Format" for advancement from Draft to Full Standard.  It has been
   prepared by the The Yet Another Mail Working Group.

   THIS INTERNET DRAFT IS NOT MEANT TO BE PUBLISHED AS AN RFC, BUT IS
   WRITTEN TO FACILITATE PROCESSING WITHIN THE IESG.

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
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   Internet-Drafts are draft documents valid for a maximum of six months
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on November 23, 2010.

Copyright Notice

   Copyright (c) 2010 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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   to this document.  Code Components extracted from this document must



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   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.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
     1.1.  Note to RFC Editor  . . . . . . . . . . . . . . . . . . . . 3
   2.  Preliminary Evaluation  . . . . . . . . . . . . . . . . . . . . 3
     2.1.  Document  . . . . . . . . . . . . . . . . . . . . . . . . . 3
     2.2.  Time in Place . . . . . . . . . . . . . . . . . . . . . . . 3
     2.3.  Implementation and Operational Experience . . . . . . . . . 3
     2.4.  Proposed Changes  . . . . . . . . . . . . . . . . . . . . . 4
     2.5.  Non-Changes . . . . . . . . . . . . . . . . . . . . . . . . 4
     2.6.  Downward references . . . . . . . . . . . . . . . . . . . . 4
     2.7.  IESG Feedback . . . . . . . . . . . . . . . . . . . . . . . 4
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 5
   4.  Security Considerations . . . . . . . . . . . . . . . . . . . . 5
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 5
     5.1.  Normative References  . . . . . . . . . . . . . . . . . . . 5
     5.2.  Informative References  . . . . . . . . . . . . . . . . . . 6






























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1.  Introduction

   A preliminary evaluation has been made of "Internet Message Format"
   [RFC5322] by the Yet Another Mail (YAM) Working Group for advancing
   it from Draft to Full Standard.  The YAM WG requests feedback from
   the IESG on this decision.

1.1.  Note to RFC Editor

   This Internet-Draft is not meant to be published as an RFC.  It is
   written to facilitate processing within the IESG.

2.  Preliminary Evaluation

2.1.  Document

   Title:   Internet Message Format

   Link:   http://tools.ietf.org/html/rfc5322

2.2.  Time in Place

   RFC2026:   _"A specification shall remain at the Draft Standard level
      for at least four (4) months, or until at least one IETF meeting
      has occurred."_

   Published:   October 2008

2.3.  Implementation and Operational Experience

   RFC2026:   _"significant implementation and successful operational
      experience ... characterized by a high degree of technical
      maturity and by a generally held belief that the specified
      protocol or service provides significant benefit to the Internet
      community."_

   Confidence level:  Very high.

   [RFC5322] moved [RFC2822] from Proposed to Draft Standard, which
   itself was an update of [RFC0822] done by the DRUMS WG.  Both
   [RFC5322] and [RFC2822] brought the protocol specifications into line
   with actual implementations and operational experience in electronic
   mail over the past 28 years.  In that sense, the implementation and
   operational experience with these documents has been extensive.







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2.4.  Proposed Changes

   The YAM WG proposes making the following changes in a revision:

   Errata 1766:  A simple clarifying editorial change, will be fixed.

   Errata 1906:  A request to simplify the ABNF of the obsolete (i.e.,
      backward compatability) syntax of the body of a message, will be
      examined to see if the syntax can be simplified, though the
      suggested syntax provided by the errata reporter is not correct as
      stated.

   Errata 1908:  An error in the ABNF of the obsolete (i.e., backward
      compatability) syntax of "folding white space" that does not agree
      with the description in the document or the current practice, will
      be fixed.

   Errata 2104:  An error in the ABNF of the obsolete (i.e., backward
      compatability) syntax of "unstructured" text that does not agree
      with the description in the document or the current practice, will
      be fixed.

2.5.  Non-Changes

   The YAM WG discussed and chose not to make the following changes:

   1.  The Security Considerations section was extensively reviewed in
       2008 (during the review and approval of RFC 5322).  No evidence
       has appeared since then that would require further review or
       additional changes.

2.6.  Downward references

   At Full Standard, the following references would be downward
   references:

      None.

2.7.  IESG Feedback

   The YAM WG requests feedback from the IESG on this decision.  In
   particular:

   o  Does the IESG believe the proposed changes are suitable during a
      move from Draft to Full Standard?

   o  Excluding the previous proposed changes and expected IESG support
      for technically substantive IETF last call feedback, does the IESG



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      believe any additional changes are critical to advance this
      document from draft to full standard?  If so, please provide
      sufficient information so the WG can address these issues prior to
      IETF last call or determine that the document is inappropriate for
      the YAM WG to process at this time.

   o  Does the IESG consider the downward references acceptable for a
      full standard?  If not, please cite which specific downward
      reference or references are problematic and why so the WG can
      address these issues prior to IETF last call or determine the
      document is inappropriate for the YAM WG to process at this time.

3.  IANA Considerations

   This document contains no IANA actions.

4.  Security Considerations

   This document requests IESG feedback and does not raise any security
   concerns.  Security considerations forRFC 5322 [RFC5322] have been
   taken into account during the preliminary evaluation and appear in
   either Section 2.4 or Section 2.5 of this document.

5.  References

5.1.  Normative References

   [ANSI.X3-4.1986]  American National Standards Institute, "Coded
                     Character Set - 7-bit American Standard Code for
                     Information Interchange", ANSI X3.4, 1986.

   [RFC1034]         Mockapetris, P., "Domain names - concepts and
                     facilities", STD 13, RFC 1034, November 1987.

   [RFC1035]         Mockapetris, P., "Domain names - implementation and
                     specification", STD 13, RFC 1035, November 1987.

   [RFC1123]         Braden, R., "Requirements for Internet Hosts -
                     Application and Support", STD 3, RFC 1123,
                     October 1989.

   [RFC2119]         Bradner, S., "Key words for use in RFCs to Indicate
                     Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC5234]         Crocker, D. and P. Overell, "Augmented BNF for
                     Syntax Specifications: ABNF", STD 68, RFC 5234,
                     January 2008.




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5.2.  Informative References

   [RFC0822]         Crocker, D., "Standard for the format of ARPA
                     Internet text messages", STD 11, RFC 822,
                     August 1982.

   [RFC1305]         Mills, D., "Network Time Protocol (Version 3)
                     Specification, Implementation", RFC 1305,
                     March 1992.

   [ISO.2022.1994]   International Organization for Standardization,
                     "Information technology - Character code structure
                     and extension techniques", ISO Standard 2022, 1994.

   [RFC2045]         Freed, N. and N. Borenstein, "Multipurpose Internet
                     Mail Extensions (MIME) Part One: Format of Internet
                     Message Bodies", RFC 2045, November 1996.

   [RFC2046]         Freed, N. and N. Borenstein, "Multipurpose Internet
                     Mail Extensions (MIME) Part Two: Media Types",
                     RFC 2046, November 1996.

   [RFC2047]         Moore, K., "MIME (Multipurpose Internet Mail
                     Extensions) Part Three: Message Header Extensions
                     for Non-ASCII Text", RFC 2047, November 1996.

   [RFC2049]         Freed, N. and N. Borenstein, "Multipurpose Internet
                     Mail Extensions (MIME) Part Five: Conformance
                     Criteria and Examples", RFC 2049, November 1996.

   [RFC2822]         Resnick, P., "Internet Message Format", RFC 2822,
                     April 2001.

   [RFC3864]         Klyne, G., Nottingham, M., and J. Mogul,
                     "Registration Procedures for Message Header
                     Fields", BCP 90, RFC 3864, September 2004.

   [RFC4021]         Klyne, G. and J. Palme, "Registration of Mail and
                     MIME Header Fields", RFC 4021, March 2005.

   [RFC4288]         Freed, N. and J. Klensin, "Media Type
                     Specifications and Registration Procedures",
                     BCP 13, RFC 4288, December 2005.

   [RFC4289]         Freed, N. and J. Klensin, "Multipurpose Internet
                     Mail Extensions (MIME) Part Four: Registration
                     Procedures", BCP 13, RFC 4289, December 2005.




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   [RFC5321]         Klensin, J., "Simple Mail Transfer Protocol",
                     RFC 5321, October 2008.

   [RFC5322]         Resnick, P., Ed., "Internet Message Format",
                     RFC 5322, October 2008.

Author's Address

   Pete Resnick
   Qualcomm Incorporated
   5775 Morehouse Drive
   San Diego, CA  92121-1714
   US

   Phone: +1 858 651 4478
   EMail: presnick@qualcomm.com
   URI:   http://www.qualcomm.com/~presnick/


































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