- File formats:
- INTERNET STANDARD
- RFC 788
- Obsoleted by:
- RFC 2821
- J. Postel
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The objective of Simple Mail Transfer Protocol (SMTP) is to transfer mail reliably and efficiently. SMTP is independent of the particular transmission subsystem and requires only a reliable ordered data stream channel. Obsoletes RFC 788, 780, and 772.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.