RFC 3028 · PROPOSED STANDARD · 2001
SUN · 14 JUN 2026
Sieve: A Mail Filtering Language
Overview
RFC 3028, “Sieve: A Mail Filtering Language”, is a Proposed Standard document published in January 2001 by T. Showalter. It has been obsoleted by RFC 5228, RFC 5429 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This document describes a language for filtering e-mail messages at time of final delivery. [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.
Read this RFC
The canonical text of RFC 3028 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 2001
- RFC 3027 Protocol Complications with the IP Network Address Translator
- RFC 3029 Internet X.509 Public Key Infrastructure Data Validation and Certification Server Protocols
- RFC 3026 Liaison to IETF/ISOC on ENUM
- RFC 3025 Mobile IP Vendor/Organization-Specific Extensions
- RFC 3031 Multiprotocol Label Switching Architecture
- RFC 3024 Reverse Tunneling for Mobile IP, revised
- RFC 3032 MPLS Label Stack Encoding
- RFC 3023 XML Media Types