SMTP (Simple Mail Transfer Protocol)

Overview

SMTP is the standard protocol for email transmission across Internet Protocol (IP) networks. It is a push protocol that sends email from an email client to a receiving email server. SMTP follows a set of specific commands and responses that enable reliable email delivery.

Detailed Explanation

Protocol Characteristics

  1. Command Structure

  • MAIL FROM

  • RCPT TO

  • DATA

  • QUIT

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