Message Submission for Mail
RFC 6409
Document | Type |
RFC - Internet Standard
(November 2011; Errata)
Updated by RFC 8314
Obsoletes RFC 4409
Also known as STD 72
|
|
---|---|---|---|
Authors | John Klensin , Randall Gellens | ||
Last updated | 2020-01-21 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized with errata bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6409 (Internet Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Pete Resnick | ||
IESG note | Standard 0072 | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) R. Gellens Request for Comments: 6409 QUALCOMM Incorporated STD: 72 J. Klensin Obsoletes: 4409 November 2011 Category: Standards Track ISSN: 2070-1721 Message Submission for Mail 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 is unaffected, and continues 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. 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/rfc6409. Gellens & Klensin Standards Track [Page 1] RFC 6409 Message Submission for Mail November 2011 Copyright Notice Copyright (c) 2011 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. Gellens & Klensin Standards Track [Page 2] RFC 6409 Message Submission for Mail November 2011 Table of Contents 1. Introduction ....................................................4 2. Document Information ............................................5 2.1. Definitions of Terms Used in This Memo .....................5 2.2. Conventions Used in This Document ..........................6 3. Message Submission ..............................................6 3.1. Submission Identification ..................................6 3.2. Message Rejection and Bouncing .............................6 3.3. Authorized Submission ......................................7 4. Mandatory Actions ...............................................8 4.1. General Submission Rejection Code ..........................8 4.2. Ensure All Domains Are Fully Qualified .....................8 4.3. Require Authentication .....................................8 5. Recommended Actions .............................................9 5.1. Enforce Address Syntax .....................................9 5.2. Log Errors .................................................9 5.3. Apply Shorter Timeouts .....................................9 6. Optional Actions ...............................................10 6.1. Enforce Submission Rights .................................10 6.2. Enforce Permissions .......................................10 6.3. Check Message Data ........................................10 6.4. Support for the Postmaster Address ........................10 6.5. Adjust Character Encodings ................................11 7. Interaction with SMTP Extensions ...............................12 8. Message Modifications ..........................................13 8.1. Add 'Sender' ..............................................14 8.2. Add 'Date' ................................................14 8.3. Add 'Message-ID' ..........................................14 8.4. Transfer Encode ...........................................14 8.5. Sign the Message ..........................................14 8.6. Encrypt the Message .......................................14 8.7. Resolve Aliases ...........................................15 8.8. Header Rewriting ..........................................15 9. Security Considerations ........................................15Show full document text