Skip to main content

Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.5 Message Specification

Document Type Replaced Internet-Draft (individual)
Expired & archived
Authors Jim Schaad, Blake C. Ramsdell , Sean Turner
Last updated 2016-07-08
Replaced by draft-ietf-lamps-rfc5751-bis
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-lamps-rfc5751-bis
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document defines Secure/Multipurpose Internet Mail Extensions (S/MIME) version 3.5. 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 5751.


Jim Schaad
Blake C. Ramsdell
Sean Turner

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)