RFC 784 · UNKNOWN · 1981
MON · 27 JUL 2026
Mail Transfer Protocol: ISI TOPS20 implementation
Overview
RFC 784, “Mail Transfer Protocol: ISI TOPS20 implementation”, is an Unknown document published in July 1981 by S. Sluizer, J. Postel. The canonical text is published by the RFC Editor.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 784 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1981
- RFC 783 TFTP Protocol
- RFC 785 Mail Transfer Protocol: ISI TOPS20 file definitions
- RFC 782 Virtual Terminal management model
- RFC 786 Mail Transfer Protocol: ISI TOPS20 MTP-NIMAIL interface
- RFC 781 Specification of the Internet Protocol timestamp option
- RFC 787 Connectionless data transmission survey/tutorial
- RFC 780 Mail Transfer Protocol
- RFC 788 Simple Mail Transfer Protocol