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Sieve Email Filtering: Delivery Status Notifications and Deliver-By Extensions
RFC 6009

Document type: RFC - Proposed Standard (October 2010; Errata)
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 6009 (Proposed Standard)
Responsible AD: Alexey Melnikov
Send notices to: sieve-chairs@tools.ietf.org, draft-freed-sieve-notary@tools.ietf.org

Internet Engineering Task Force (IETF)                          N. Freed
Request for Comments: 6009                                        Oracle
Category: Standards Track                                   October 2010
ISSN: 2070-1721

                         Sieve Email Filtering:
        Delivery Status Notifications and Deliver-By Extensions

Abstract

   This document describes the "envelope-dsn", "redirect-dsn",
   "envelope-deliverby", and "redirect-deliverby" extensions to the
   Sieve email filtering language.  The "envelope-dsn" and "envelope-
   deliverby" extensions provide access to additional envelope
   information provided by the delivery status notification (DSN) and
   Deliver-By SMTP extensions, respectively.  The "redirect-dsn" and
   "redirect-deliverby" extensions extend Sieve's redirect action to
   provide control over delivery status notification and Deliver-By
   parameters, respectively.

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/rfc6009.

Freed                        Standards Track                    [Page 1]
RFC 6009          Sieve DSNs and Deliver-By Extensions      October 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
   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.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Conventions Used in This Document  . . . . . . . . . . . . . .  3
   3.  Capability Identifiers . . . . . . . . . . . . . . . . . . . .  4
   4.  Envelope-dsn Extension . . . . . . . . . . . . . . . . . . . .  4
     4.1.  Examples . . . . . . . . . . . . . . . . . . . . . . . . .  5
   5.  Envelope-deliverby Extension . . . . . . . . . . . . . . . . .  6
     5.1.  Examples . . . . . . . . . . . . . . . . . . . . . . . . .  7
   6.  redirect-dsn Extension . . . . . . . . . . . . . . . . . . . .  9
     6.1.  MAIL FROM Address Selection  . . . . . . . . . . . . . . .  9
     6.2.  Example  . . . . . . . . . . . . . . . . . . . . . . . . .  9
   7.  redirect-deliverby Extension . . . . . . . . . . . . . . . . . 10
     7.1.  MAIL FROM Address Selection  . . . . . . . . . . . . . . . 11
     7.2.  Example  . . . . . . . . . . . . . . . . . . . . . . . . . 11
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 11
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 12
   10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     10.1. Normative References . . . . . . . . . . . . . . . . . . . 13
     10.2. Informative References . . . . . . . . . . . . . . . . . . 14
   Appendix A.  Acknowledgements  . . . . . . . . . . . . . . . . . . 15

Freed                        Standards Track                    [Page 2]
RFC 6009          Sieve DSNs and Deliver-By Extensions      October 2010

1.  Introduction

   Sieve [RFC5228] is a language for filtering email messages at or
   around the time of final delivery.  It is designed to be
   implementable on either a mail client or mail server.  It is suitable
   for running on a mail server where users may not be allowed to
   execute arbitrary programs, such as on black box Internet Message
   Access Protocol [RFC3501] servers, as it has no user-controlled loops
   or the ability to run external programs.

   The base Sieve specification defines the envelope extension and test
   to access information in the message envelope.  Only information
   available in regular SMTP [RFC5321] is provided; additional
   information added to the SMTP envelope by SMTP extensions cannot be
   accessed.

   The "envelope-dsn" extension extends the envelope test to allow

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