Sieve Extension: File Carbon Copy (Fcc)
draft-ietf-extra-sieve-fcc-05

Document Type Active Internet-Draft (extra WG)
Last updated 2018-09-16 (latest revision 2018-09-10)
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EXTRA                                                       K. Murchison
Internet-Draft                                               B. Gondwana
Updates: 5230, 5435 (if approved)                               FastMail
Intended status: Standards Track                      September 10, 2018
Expires: March 14, 2019

                Sieve Extension: File Carbon Copy (Fcc)
                     draft-ietf-extra-sieve-fcc-05

Abstract

   The Sieve Email Filtering Language provides a number of action
   commands, some of which can generate additional messages on behalf of
   the user.  This document defines an extension to such commands to
   allow a copy of any generated message to be filed into a target
   mailbox.

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 14, 2019.

Copyright Notice

   Copyright (c) 2018 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
   (https://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

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   3
   3.  Tagged Argument ":fcc"  . . . . . . . . . . . . . . . . . . .   3
     3.1.  Format of Filed Messages  . . . . . . . . . . . . . . . .   3
     3.2.  Interaction with the Vacation Action  . . . . . . . . . .   4
     3.3.  Interaction with the Notify Action  . . . . . . . . . . .   5
       3.3.1.  Notification-Capability "fcc" . . . . . . . . . . . .   5
     3.4.  Compatibility with Other Actions  . . . . . . . . . . . .   6
     3.5.  Interaction with Fileinto Extensions  . . . . . . . . . .   6
       3.5.1.  Imap4flags Extension  . . . . . . . . . . . . . . . .   7
       3.5.2.  Mailbox Extension . . . . . . . . . . . . . . . . . .   7
       3.5.3.  Special-Use Extension . . . . . . . . . . . . . . . .   7
       3.5.4.  Extended Example  . . . . . . . . . . . . . . . . . .   8
   4.  Implementation Status . . . . . . . . . . . . . . . . . . . .   8
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
     6.1.  Registration of Sieve Extension . . . . . . . . . . . . .   9
     6.2.  Registration of Notification-Capability
           Parameter . . . . . . . . . . . . . . . . . . . . . . . .   9
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  10
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  11
     8.3.  URIs  . . . . . . . . . . . . . . . . . . . . . . . . . .  12
   Appendix A.  Change History (To be removed by RFC Editor before
                publication) . . . . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   The Sieve Email Filtering Language [RFC5228] provides a number of
   action commands, some of which can generate additional messages on
   behalf of the user.  It is sometimes desirable for a Sieve user to
   maintain an archive of the messages generated by these commands.

   This extension defines a new optional tagged argument ":fcc" to
   action commands which generate additional messages to allow a copy of
   the generated message to be filed into a target mailbox.

   The capability string associated with this extension is "fcc".

   Each action that generates additional messages will need to specify
   how it interfacts with :fcc.  This document also specifies the

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