RFC 5751 · PROPOSED STANDARD · 2010

Secure/Multipurpose Internet Mail Extensions Version 3.2 Message Specification

Overview

RFC 5751, “Secure/Multipurpose Internet Mail Extensions Version 3.2 Message Specification”, is a Proposed Standard document published in January 2010 by B. Ramsdell, S. Turner. It obsoletes RFC 3851. It has been obsoleted by RFC 8551 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

This document defines Secure/Multipurpose Internet Mail Extensions (S/MIME) version 3.2. S/MIME provides a consistent way to send and receive secure MIME data. Digital signatures provide authentication, message integrity, and non-repudiation with proof of origin. Encryption provides data confidentiality. Compression can be used to reduce data size. This document obsoletes RFC 3851. [STANDARDS-TRACK]

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 5751 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC obsoletes
RFC 3851
Obsoleted by
RFC 8551
Other RFCs from 2010

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