Sieve Email Filtering: Subaddress Extension
RFC 5233, “Sieve Email Filtering: Subaddress Extension”, is a Proposed Standard document published in January 2008 by K. Murchison. It obsoletes RFC 3598. The canonical text is published by the RFC Editor.
Abstract
On email systems that allow for 'subaddressing' or 'detailed addressing' (e.g., "ken+sieve@example.org"), it is sometimes desirable to make comparisons against these sub-parts of addresses. This document defines an extension to the Sieve Email Filtering Language that allows users to compare against the user and detail sub-parts of an address. [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 5233 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 5232 Sieve Email Filtering: Imap4flags Extension
- RFC 5234 Augmented BNF for Syntax Specifications: ABNF
- RFC 5231 Sieve Email Filtering: Relational Extension
- RFC 5235 Sieve Email Filtering: Spamtest and Virustest Extensions
- RFC 5230 Sieve Email Filtering: Vacation Extension
- RFC 5236 Improved Packet Reordering Metrics
- RFC 5229 Sieve Email Filtering: Variables Extension
- RFC 5237 IANA Allocation Guidelines for the Protocol Field