RFC 9042 · PROPOSED STANDARD · 2021

Sieve Email Filtering: Delivery by MAILBOXID

Overview

RFC 9042, “Sieve Email Filtering: Delivery by MAILBOXID”, is a Proposed Standard document published in June 2021 by B. Gondwana. It updates RFC 5228. The canonical text is published by the RFC Editor.

Abstract

The OBJECTID capability of IMAP (RFC 8474) allows clients to identify mailboxes by a unique identifier that survives renaming.

This document extends the Sieve email filtering language (RFC 5228) to allow using that same unique identifier as a target for fileinto rules and for testing the existence of mailboxes.

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 9042 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.

Relationships to other RFCs
This RFC updates
RFC 5228
Other RFCs from 2021

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