- Canonical URL:
- File formats:
- INTERNET STANDARD
- RFC 1651
- Obsoleted by:
- RFC 2821
- J. Klensin
- smtpext (app)
Discuss this RFC: Send questions or comments to firstname.lastname@example.org
This memo defines a framework for extending the SMTP service by defining a means whereby a server SMTP can inform a client SMTP as to the service extensions it supports. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.