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The Simple Mail Transfer Protocol (SMTP) is a technical standard for transmitting electronic mail (email) over a network. Like other networking protocols, SMTP allows computers and servers to exchange data regardless of their underlying hardware or software.
SMTP is a connection-oriented, text-based protocol in which a mail sender communicates with a mail receiver by issuing command strings and supplying necessary data over a reliable ordered data stream channel, typically a Transmission Control Protocol (TCP) connection.
25 sty 2024 · An SMTP session begins when the client opens a Transmission Control Protocol connection (TCP connection, sometimes called TCP/IP) to the SMTP server. The server responds with an opening message, expressed with code 250.
17 sty 2024 · SMTP works as a universal mail carrier, connecting users around the world regardless of the hardware and software they use. This guide explains what SMTP is, what it does, how it works, and what commands it uses. You also learn how SMTP works with other protocols to make end-to-end delivery possible.
27 sie 2018 · An “ SMTP server ” refers to a mail server that forwards emails from a sender to one or more recipients in accordance with network protocol regulations across the internet. One important function of the SMTP mail server is to prevent spam using authentication mechanisms that only allow authorized users to deliver emails.
SMTP stands for Simple Mail Transfer Protocol. It is a communication protocol used for sending and receiving email messages over the Internet. Mail servers and other message transfer agents (MTAs) use SMTP to send, receive and relay mail messages.
Learn about SMTP, how it works and what an SMTP server is. Examine how SMTP compares to IMAP, POP3 and ESMTP, and what SMTP service providers offer.
