Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Certificate Handling, April 2019
- Canonical URL:
- File formats:
- PROPOSED STANDARD
- RFC 5750
- J. Schaad
- lamps (sec)
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This document specifies conventions for X.509 certificate usage by Secure/Multipurpose Internet Mail Extensions (S/MIME) v4.0 agents. S/MIME provides a method to send and receive secure MIME messages, and certificates are an integral part of S/MIME agent processing. S/MIME agents validate certificates as described in RFC 5280 ("Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile"). S/MIME agents must meet the certificate-processing requirements in this document as well as those in RFC 5280. This document obsoletes RFC 5750.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.