IMAP4 Keyword Registry
RFC 5788
| Document | Type |
RFC - Proposed Standard
(March 2010; No errata)
Updated by RFC 8621
Was draft-melnikov-imap-keywords (individual in app area)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 5788 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Lisa Dusseault | ||
| Send notices to | barryleiba@computer.org | ||
Internet Engineering Task Force (IETF) A. Melnikov
Request for Comments: 5788 D. Cridland
Category: Standards Track Isode Limited
ISSN: 2070-1721 March 2010
IMAP4 Keyword Registry
Abstract
The aim of this document is to establish a new IANA registry for IMAP
keywords and to define a procedure for keyword registration, in order
to improve interoperability between different IMAP clients.
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/rfc5788.
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.
Melnikov & Cridland Standards Track [Page 1]
RFC 5788 IMAP4 Keyword Registry March 2010
Table of Contents
1. Introduction ....................................................2
2. Conventions Used in This Document ...............................2
3. IANA Considerations .............................................3
3.1. Review Guidelines for the Designated Expert Reviewer .......4
3.2. Comments on IMAP Keywords' Registrations ...................5
3.3. Change Control .............................................5
3.4. Initial Registrations ......................................6
3.4.1. $MDNSent IMAP Keyword Registration ..................6
3.4.2. $Forwarded IMAP Keyword Registration ................7
3.4.3. $SubmitPending IMAP Keyword Registration ............8
3.4.4. $Submitted IMAP Keyword Registration ................9
4. Security Considerations ........................................10
5. Acknowledgements ...............................................10
6. References .....................................................10
6.1. Normative References ......................................10
6.2. Informative References ....................................11
1. Introduction
IMAP keywords [RFC3501] are boolean named flags that can be used by
clients to annotate messages in an IMAP mailbox. Although IMAP
keywords are an optional feature of IMAP, the majority of IMAP
servers can store arbitrary keywords. Many mainstream IMAP clients
use a limited set of specific keywords, and some can manage (create,
edit, display) arbitrary IMAP keywords.
Over the years, some IMAP keywords have become de-facto standards,
with some specific semantics associated with them. In some cases,
different client implementors decided to define and use keywords with
different names, but the same semantics. Some server implementors
decided to map such keywords automatically in order to improve cross-
client interoperability.
In other cases, the same keywords have been used with different
semantics, thus causing interoperability problems.
This document attempts to prevent further incompatible uses of IMAP
keywords by establishing an "IMAP Keywords" registry and allocating a
special prefix for standardized keywords.
2. 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 [Kwds].
Melnikov & Cridland Standards Track [Page 2]
RFC 5788 IMAP4 Keyword Registry March 2010
3. IANA Considerations
IANA has established a new registry for IMAP keywords.
Registration of an IMAP keyword is requested by filling in the
following template and following the instructions on the IANA pages
for the registry to submit it to IANA:
Subject: Registration of IMAP keyword X
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