Network Working Group A. Melnikov
Internet-Draft Isode Ltd
Updates: 5228 (if approved) 3 March 2022
Intended status: Standards Track
Expires: 4 September 2022
IANA registry for Sieve actions
draft-ietf-extra-sieve-action-registry-01
Abstract
This document creates a registry of Sieve (RFC 5228) actions in order
to help developers and Sieve extension writers track interactions
between different extensions.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on 4 September 2022.
Copyright Notice
Copyright (c) 2022 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
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Please review these documents carefully, as they describe your rights
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions Used in This Document . . . . . . . . . . . . . . 2
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2
4. Security Considerations . . . . . . . . . . . . . . . . . . . 3
5. Normative References . . . . . . . . . . . . . . . . . . . . 3
Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 3
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 4
1. Introduction
Sieve Email Filtering Language [RFC5228] is a popular email filtering
language used upon final mail delivery. Popularity of Sieve resulted
in a myriad of Sieve extensions that can interact with each other in
wonderful and complex ways. There is currently no easy way to find
out all actions defined by Sieve extensions published in RFCs, which
make it quite difficult for Sieve extension writers and Sieve
implementation developers to forsee interactions between Sieve
actions.
This document creates a registry of Sieve [RFC5228] actions in order
to help developers and Sieve extension writers track interactions
between different extensions.
2. Conventions Used in This Document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
3. IANA Considerations
IANA is requested to create a new registry for Sieve actions (see
Section 2.9 of [RFC5228] for details on Sieve actions). Registration
of both actions specified in IETF Stream RFCs and vendor specific
actions is allowed and encouraged. The registration template
contains 1) name of the action; 2) short description; 3) references:
one or more documents describing the action and any significant
updates to its definition (this field is REQUIRED for actions
described in RFCs and OPTIONAL otherwise); 4) name(s) of Sieve
capabilit(ies) associated with the Sieve action being registered; 5)
interactions with other Sieve actions, if any; 6) flag specifying
whether the action cancels the implicit keep (see Section 2.10.2 of
[RFC5228]); 7) whether or not this action can be used with IMAP
events in Sieve ([RFC6785]), and 8) optional comment.
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Registration procedure for this registry is Expert Review. The
Designated Expert only checks that the name of the action being
registered matches documentation, that the description field is
accurate, that the correct documents are referenced and that the list
of relevant documents is as complete as possible. The Designated
Expert can't reject a registration based on personal dislike of the
document defining an action and should always err on the side of
registering, even if documentation is not complete.
Addition of a new reference to an existing registration or change to
the description field goes through the same registration procedure as
a new registration.
4. Security Considerations
The sole purpose of this document is to create a new IANA registry,
so it doesn't create new security considerations for Sieve
implementations.
The new registry should help Sieve extension writers and Sieve
implementors track interactions between different Sieve actions, so
it might improve quality of specifications and implementations,
including security aspects.
5. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC5228] Guenther, P., Ed. and T. Showalter, Ed., "Sieve: An Email
Filtering Language", RFC 5228, DOI 10.17487/RFC5228,
January 2008, <https://www.rfc-editor.org/info/rfc5228>.
[RFC6785] Leiba, B., "Support for Internet Message Access Protocol
(IMAP) Events in Sieve", RFC 6785, DOI 10.17487/RFC6785,
November 2012, <https://www.rfc-editor.org/info/rfc6785>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
Appendix A. Acknowledgements
TBD.
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Author's Address
Alexey Melnikov
Isode Ltd
14 Castle Mews
Hampton
TW12 2NP
United Kingdom
Email: Alexey.Melnikov@isode.com
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