Sieve Extension for Converting Messages before Delivery
RFC 6558
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RFC - Proposed Standard
(March 2012; No errata)
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2015-10-14
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draft-melnikov-sieve-convert
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IETF
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RFC 6558 (Proposed Standard)
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Consensus Boilerplate |
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Unknown
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Pete Resnick
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(None)
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Internet Engineering Task Force (IETF) A. Melnikov
Request for Comments: 6558 Isode Limited
Category: Standards Track B. Leiba
ISSN: 2070-1721 K. Li
Huawei Technologies
March 2012
Sieve Extension for Converting Messages before Delivery
Abstract
This document describes how the "CONVERT" IMAP extension can be used
within the Sieve mail filtering language to transform messages before
final delivery.
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/rfc6558.
Copyright Notice
Copyright (c) 2012 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.
Melnikov, et al. Standards Track [Page 1]
RFC 6558 Sieve CONVERT March 2012
Table of Contents
1. Introduction ....................................................2
1.1. Conventions Used in This Document ..........................2
2. "convert" Action ................................................2
2.1. Interaction with Other Tests and Actions ...................3
2.2. "convert" as a Test ........................................4
3. Examples ........................................................5
3.1. Example 1 ..................................................5
3.2. Example 2 ..................................................5
3.3. Example 3 ..................................................5
3.4. Example 4 ..................................................6
4. Security Considerations .........................................7
5. IANA Considerations .............................................7
6. Acknowledgements ................................................7
7. Normative References ............................................7
1. Introduction
The IMAP "CONVERT" extension [RFC5259] adds an IMAP command for
performing client-controlled conversions on whole messages or their
body parts. This document defines a similar extension to the Sieve
mail filtering language [RFC5228], which reuses the conversion
parameters and framework established by IMAP CONVERT.
1.1. Conventions Used in This Document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Conventions for notations are as in Sieve [RFC5228], Section 1.1.
2. "convert" Action
Usage: convert <quoted-from-media-type: string>
<quoted-to-media-type: string>
<transcoding-params: string-list>
The "convert" action specifies that all body parts with a media type
[RFC2046] (sometimes called "MIME type") equal to <quoted-from-media-
type> be converted to the media type in <quoted-to-media-type> using
conversion parameters specified in <transcoding-params>. Each
conversion parameter value has the following syntax: "<transcoding-
param-name>=<transcoding-param-value>", where <transcoding-param-
name> and <transcoding-param-value> are defined in CONVERT [RFC5259].
Messages that don't have any body parts with the <quoted-from-media-
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