Network Working Group A. Melnikov
Request for Comments: 5232 Isode Limited
Category: Standards Track January 2008

Sieve Email Filtering: Imap4flags Extension

Status of This Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Abstract

Recent discussions have shown that it is desirable to set different IMAP (RFC 3501) flags on message delivery. This can be done, for example, by a Sieve interpreter that works as a part of a Mail Delivery Agent.

This document describes an extension to the Sieve mail filtering language for setting IMAP flags. The extension allows setting of both IMAP system flags and IMAP keywords.

Table of Contents

1. Introduction ....................................................2
1.1. Conventions Used ...........................................2
2. General Requirements for Flag Handling ..........................3
3. Actions .........................................................3
3.1. Action setflag .............................................4
3.2. Action addflag .............................................4
3.3. Action removeflag ..........................................5
4. Test hasflag ....................................................6
5. Tagged Argument :flags ..........................................7
6. Interaction with Other Sieve Actions ............................8
7. Security Considerations .........................................8
8. IANA Considerations .............................................8
9. Extended Example ................................................8
10. Acknowledgments ...............................................10
11. Normative References ..........................................10