Sieve Extension: File Carbon Copy (Fcc)
draft-ietf-extra-sieve-fcc-00

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Last updated 2017-09-21
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EXTRA                                                       K. Murchison
Internet-Draft                                               B. Gondwana
Updates: 5230, 5429 (if approved)                               FastMail
Intended status: Standards Track                      September 21, 2017
Expires: March 25, 2018

                Sieve Extension: File Carbon Copy (Fcc)
                     draft-ietf-extra-sieve-fcc-00

Abstract

   The Sieve Email Filtering Language consists of action commands that
   can reply to the sender of an incoming message with a generated
   message.  This document defines an extension to such commands to
   allow a copy of the generated reply message to be filed into a target
   mailbox.

Open Issues

   o  Should :fcc be allowed with reject/ereject?

   o  Should there be a separate capability string for each action that
      uses :fcc (e.g. "vacation-fcc")?

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
   Task Force (IETF).  Note that other groups may also distribute
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   This Internet-Draft will expire on March 25, 2018.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   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
   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 . . . . . . . . . . . . . .   2
   3.  The ":fcc" Argument . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Interaction with Fileinto Extensions  . . . . . . . . . .   3
       3.1.1.  Imap4flags Extension  . . . . . . . . . . . . . . . .   3
       3.1.2.  Mailbox Extension . . . . . . . . . . . . . . . . . .   4
       3.1.3.  Special-Use Extension . . . . . . . . . . . . . . . .   4
       3.1.4.  Extended Example  . . . . . . . . . . . . . . . . . .   4
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   5
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   5
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   The Sieve Email Filtering Language [RFC5228] consists of action
   commands that can reply to the sender of an incoming message with a
   generated message.  Three such commands are defined by the Vacation
   Extension [RFC5230] and the Reject and Extended Reject Extensions
   [RFC5429].  It is sometimes desirable to have an archive of these
   auto-generated reply messages.

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

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

2.  Conventions Used in This Document

   Conventions for notations are as in Section 1.1 of [RFC5228],
   including use of the "Usage:" label for the definition of action and
   tagged arguments syntax.

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   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
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