RFC 3685 · PROPOSED STANDARD · 2004

SIEVE Email Filtering: Spamtest and VirusTest Extensions

Overview

RFC 3685, “SIEVE Email Filtering: Spamtest and VirusTest Extensions”, is a Proposed Standard document published in February 2004 by C. Daboo. It has been obsoleted by RFC 5235 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

The SIEVE mail filtering language "spamtest" and "virustest" extensions permit users to use simple, portable commands for spam and virus tests on email messages. Each extension provides a new test using matches against numeric 'scores'. It is the responsibility of the underlying SIEVE implementation to do the actual checks that result in values returned by the tests. [PROPOSED STANDARD]

Abstract as published in the RFC, via rfc-editor.org.

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 3685 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
Obsoleted by
RFC 5235
Other RFCs from 2004

Who Is Online

In total there are 45 users online: 0 registered, 40 guests and 5 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: Applebot Googlebot Majestic Other Bot SemrushBot

Users active in the past 15 minutes. Total registered members: 354