What is SMTP - Simple Mail Transfer Protocol? - IT Zone

  • SMTP stands for Simple Mail Transfer Protocol. It is used to delivery of E-mail. It enables the sender to keep a copy of the mail until it is actually delivered. It enhances the reliability of message delivery.
  • It is a protocol for sending e-mail messages between servers. Most e-mail systems that send mail over the Internet use SMTP to send messages from one server to another; the messages can then be retrieved with an e-mail client using either POP or IMAP. In addition, SMTP is generally used to send messages from a mail client to a mail server

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