What is SMTP


A possible scheme SMTP

SMTP (Simple Mail Transfer Protocol) - a very popular network protocol, which is used for e-mail transmission in TCP / IP networks (translated into Russian, this term refers to the Simple Mail Transfer Protocol). Simply put - it is a system, thanks to which we can exchange emails.
The SMTP protocol was created in the distant 1982 year. His last update was in 2008 year, ESMTP when the extension has been developed.

Why the need for SMTP

This protocol is needed in order, to e-mails reach their recipients in the form, in which they were sent. All letters pass through SMPT server.

What makes the SMTP server

  • check the settings and allows a computer to send an email
  • sends a letter to the specified address and checks, whether it has been delivered. If the letter delivery fails, then the sender will be notified

It is difficult to imagine the work of modern e-mail without the SMTP protocol. It manages the huge influx of e-mails, that users continuously send and receive through various e-mail clients. The SMTP server at the same colossal burden falls.

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