RFC 5230 · PROPOSED STANDARD · 2008
SUN · 14 JUN 2026
Sieve Email Filtering: Vacation Extension
Overview
RFC 5230, “Sieve Email Filtering: Vacation Extension”, is a Proposed Standard document published in January 2008 by T. Showalter, N. Freed. It has since been updated by RFC 8580. The canonical text is published by the RFC Editor.
Abstract
This document describes an extension to the Sieve email filtering language for an autoresponder similar to that of the Unix "vacation" command for replying to messages. Various safety features are included to prevent problems such as message loops. [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
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Relationships to other RFCs
Other RFCs from 2008
- RFC 5229 Sieve Email Filtering: Variables Extension
- RFC 5231 Sieve Email Filtering: Relational Extension
- RFC 5228 Sieve: An Email Filtering Language
- RFC 5232 Sieve Email Filtering: Imap4flags Extension
- RFC 5227 IPv4 Address Conflict Detection
- RFC 5233 Sieve Email Filtering: Subaddress Extension
- RFC 5226 Guidelines for Writing an IANA Considerations Section in RFCs
- RFC 5234 Augmented BNF for Syntax Specifications: ABNF