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RFC 4409 - Message Submission for Mail

  • Status: Draft Standard (Standards Track)
  • Published: April 2006
  • Stream: independent
  • Obsoletes: RFC 2476
  • Obsoleted by: RFC 6409
  • Errata: No Errata
Network Working Group                                         R. Gellens
Request for Comments: 4409                                      QUALCOMM
Obsoletes: 2476                                               J. Klensin
Category: Standards Track                                     April 2006

                       Message Submission for Mail

Table of Contents

   1. Introduction ....................................................3
   2. Document Information ............................................4
      2.1. Definitions of Terms Used in This Memo .....................4
      2.2. Conventions Used in This Document ..........................5
   3. Message Submission ..............................................5
      3.1. Submission Identification ..................................5
      3.2. Message Rejection and Bouncing .............................5
      3.3. Authorized Submission ......................................6
   4. Mandatory Actions ...............................................7
      4.1. General Submission Rejection Code ..........................7
      4.2. Ensure All Domains Are Fully-Qualified .....................7
      4.3. Require Authentication .....................................8
   5. Recommended Actions .............................................8
      5.1. Enforce Address Syntax .....................................8
      5.2. Log Errors .................................................8
   6. Optional Actions ................................................9
      6.1. Enforce Submission Rights ..................................9
      6.2. Enforce Permissions ........................................9
      6.3. Check Message Data .........................................9
      6.4. Support for the Postmaster Address .........................9
   7. Interaction with SMTP Extensions ...............................10
   8. Message Modifications ..........................................11
      8.1. Add 'Sender' ..............................................11
      8.2. Add 'Date' ................................................11
      8.3. Add 'Message-ID' ..........................................11
      8.4. Transfer Encode ...........................................11
      8.5. Sign the Message ..........................................11
      8.6. Encrypt the Message .......................................12
      8.7. Resolve Aliases ...........................................12
      8.8. Header Rewriting ..........................................12
   9. Security Considerations ........................................12
   10. IANA Considerations ...........................................13
   11. Acknowledgements ..............................................13
   12. Normative References ..........................................14
   13. Informative References ........................................14

Status of This Memo​

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright (C) The Internet Society (2006).

Abstract​

This memo splits message submission from message relay, allowing each service to operate according to its own rules (for security, policy, etc.), and specifies what actions are to be taken by a submission server.

Message relay and final delivery are unaffected, and continue to use SMTP over port 25.

When conforming to this document, message submission uses the protocol specified here, normally over port 587.

This separation of function offers a number of benefits, including the ability to apply specific security or policy requirements.

Contents​

Copyright (C) The Internet Society (2006).

This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights.

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Intellectual Property​

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Acknowledgement​

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