Sieve Email Filtering: Reject and Extended Reject Extensions
RFC 5429, “Sieve Email Filtering: Reject and Extended Reject Extensions”, is a Proposed Standard document published in March 2009 by A. Stone. It updates RFC 5228. It obsoletes RFC 3028. The canonical text is published by the RFC Editor.
Abstract
This memo updates the definition of the Sieve mail filtering language "reject" extension, originally defined in RFC 3028.
A "Joe-job" is a spam run forged to appear as though it came from an innocent party, who is then generally flooded by automated bounces, Message Disposition Notifications (MDNs), and personal messages with complaints. The original Sieve "reject" action defined in RFC 3028 required use of MDNs for rejecting messages, thus contributing to the flood of Joe-job spam to victims of Joe-jobs.
This memo updates the definition of the "reject" action to allow messages to be refused during the SMTP transaction, and defines the "ereject" action to require messages to be refused during the SMTP transaction, if possible.
The "ereject" action is intended to replace the "reject" action wherever possible. The "ereject" action is similar to "reject", but will always favor protocol-level message rejection. [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 5429 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 5428 Management Event Management Information Base for PacketCable- and IPCablecom-Compliant Devices
- RFC 5430 Suite B Profile for Transport Layer Security
- RFC 5427 Textual Conventions for Syslog Management
- RFC 5431 Diameter ITU-T Rw Policy Enforcement Interface Application
- RFC 5426 Transmission of Syslog Messages over UDP
- RFC 5432 Quality of Service Mechanism Selection in the Session Description Protocol
- RFC 5425 Transport Layer Security Transport Mapping for Syslog
- RFC 5433 Extensible Authentication Protocol - Generalized Pre-Shared Key Method