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IPFYI
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SMTP

Simple Mail Transfer Protocol

Application Layer — Email

프로토콜 개요

정식 명칭 Simple Mail Transfer Protocol
약어 SMTP
OSI 계층 Application Layer
카테고리 Email
기본 포트 25, 465, 587
RFC RFC 5321

소개 SMTP

Standard protocol for sending email between mail servers. Handles message routing, delivery, and relay across the internet.

Application Layer Email 포트 25, 465, 587

표준 문서

SMTP은(는) IETF(Internet Engineering Task Force)에서 발행한 RFC 5321에 정의되어 있습니다. RFC는 인터넷 프로토콜의 공식 표준 문서이며, 누구나 자유롭게 열람할 수 있습니다.

관련 프로토콜 — Application Layer

HTTP Hypertext Transfer Protocol HTTPS HTTP Secure HTTP/2 HTTP/2 HTTP/3 HTTP/3 WS WebSocket IMAP Internet Message Access Protocol POP3 Post Office Protocol v3 FTP File Transfer Protocol
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