What is SMTP?

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Stands for “Simple Transfer Protocol.” This is the protocol used for sending e-mail over the .

Your e-mail (such as Outlook, Eudora, or Mac OS X Mail) uses SMTP to send a message to the mail , and the mail server uses SMTP to relay that message to the correct receiving mail server. Basically, SMTP is a set of commands that authenticate and direct the transfer of electronic mail.

When configuring the settings for your e-mail program, you usually need to set the SMTP server to your local Internet Service Provider’s SMTP settings (i.e. “smtp.yourisp.com”). However, the incoming mail server ( or ) should be set to your mail account’s server (i.e. hotmail.com), which may be different than the SMTP server.

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