• What is SMTP?

    Kira Dobrovolskaya
    Kira Dobrovolskaya
    March 27, 2013
    What is SMTP?

    Many people do not know what SMTP is. SMTP is a simple protocol for sending mail, it was created to exchange data and letters in e-mail. Such a protocol exists to simplify the transfer of e-mail between TCP / IP networks. The SMTP was invented back in 1982. Its latest update dates back to 2008 and consists of a major expansion - ЕSMTP. Speaking now about SMTP, we mean and extensions.

    Why do you need SMTP?

    First of all, SMTP serves to ensure that emails reach their recipients in the correct form. It is also necessary to clarify what an SMTP server is. This is the server used as a transfer for email. So, SMTP server:

    • checks the settings and gives permission to the computer to send e-mail.
    • sends outgoing mail to a specific address and checks if the message has been delivered. If it is impossible to deliver the letter, the sender receives such notification from the SMTP server.

    Without SMTP it’s hard to imagine the existence of email at all.This protocol controls the flow of e-mail traffic sent by users of different mail clients every day. If you imagine how many emails people write every day, it is even difficult to imagine to an ordinary person what kind of workload goes to the SMTP server.

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