Sieve: An Email Filtering Language
RFC 5228, “Sieve: An Email Filtering Language”, is a Proposed Standard document published in January 2008 by P. Guenther, T. Showalter. It obsoletes RFC 3028. It has since been updated by RFC 5229, RFC 5429, RFC 6785, RFC 9042. The canonical text is published by the RFC Editor.
Abstract
This document describes a language for filtering email messages at time of final delivery. It is designed to be implementable on either a mail client or mail server. It is meant to be extensible, simple, and independent of access protocol, mail architecture, and operating system. It is suitable for running on a mail server where users may not be allowed to execute arbitrary programs, such as on black box Internet Message Access Protocol (IMAP) servers, as the base language has no variables, loops, or ability to shell out to external programs. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 5228 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 5227 IPv4 Address Conflict Detection
- RFC 5229 Sieve Email Filtering: Variables Extension
- RFC 5226 Guidelines for Writing an IANA Considerations Section in RFCs
- RFC 5230 Sieve Email Filtering: Vacation Extension
- RFC 5225 RObust Header Compression Version 2 : Profiles for RTP, UDP, IP, ESP and UDP-Lite
- RFC 5231 Sieve Email Filtering: Relational Extension
- RFC 5224 Diameter Policy Processing Application
- RFC 5232 Sieve Email Filtering: Imap4flags Extension