Term Description

SMTP

SMTP (Simple Mail Transfer Protocol) is a TCP/IP protocol used in sending and receiving e-mail. It is usually used together with POP3 or IMAP, protocols that let the user save messages in a mailbox and download them periodically from a server. In other words, client programs typically use SMTP for sending e-mail and POP3/IMAP for downloading email messages from their local mail server.
 

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