| SMTP is a short for Simple Mail Transfer Protocol and it is used to transfer e-mail messages between computers. It is a text based protocol and in this, message text is specified along with the recipients of the message. Simple Mail Transfer Protocol is a 'push' protocol and it cannot be used to 'pull' the messages from the server.
SMTP Functions 2. There's one limitation to SMTP and it's the inability to authenticate the senders and this results in e-mail spamming. The enhanced version of SMTP also exists and its called as Extended SMTP (ESMTP). ESMTP is used to send the e-mails that include graphics and other attachments. |
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