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Simple Mail Transfer Protocol
Internet protocol used for relaying e-mails
Details
- Instance of
- computer network protocol, text-based protocol
- Inception
- 1982
- described by source
- RFC 2821: Simple Mail Transfer Protocol, RFC 821: Simple Mail Transfer Protocol, RFC 5321: Simple Mail Transfer Protocol, RFC 1047: Duplicate messages and SMTP, RFC 1425: SMTP Service Extensions, RFC 1651: SMTP Service Extensions, RFC 1869: SMTP Service Extensions, RFC 1426: SMTP Service Extension for 8bit-MIMEtransport, RFC 1427: SMTP Service Extension for Message Size Declaration, RFC 1652: SMTP Service Extension for 8bit-MIMEtransport, RFC 1653: SMTP Service Extension for Message Size Declaration, RFC 1870: SMTP Service Extension for Message Size Declaration
- OSI Model layer location
- application layer
- port
- 25, 25
- topic's main category
- Category:Simple Mail Transfer Protocol
Connected on Wikidata
Subject of
- RFC 2821: Simple Mail Transfer Protocol
- RFC 821: Simple Mail Transfer Protocol
- RFC 5321: Simple Mail Transfer Protocol
- list of SMTP server return codes
- swaks
- RFC 2554: SMTP Service Extension for Authentication
- RFC 7293: The Require-Recipient-Valid-Since Header Field and SMTP Service Extension
- RFC 4954: SMTP Service Extension for Authentication
- RFC 1090: SMTP on X.25
- RFC 7672: SMTP Security via Opportunistic DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS)
- RFC 1891: SMTP Service Extension for Delivery Status Notifications
- RFC 2197: SMTP Service Extension for Command Pipelining
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