Which protocol is used to transmit email across the Internet?

Which protocol is used to transmit email across the Internet?

• A. Hypertext Transfer Protocol
• B. File Transfer Protocol
• C. Simple Mail Transfer Protocol
• D. Network News Transfer Protocol

Answer: (C)

Email transmission across the Internet relies on a protocol designed specifically to move messages between mail servers and toward their destination. Simple Mail Transfer Protocol is the standard used to transfer email from a client to a mail server and between servers to relay messages along the delivery path. It handles the routing, queuing, and delivery of mail, using commands that establish the session, specify the sender and recipient, and transfer the message data. Other options perform different tasks: Hypertext Transfer Protocol is for web page access, File Transfer Protocol is for moving files, and Network News Transfer Protocol is for Usenet articles. For completeness, retrieving mail from a server uses protocols like IMAP or POP3, but the protocol that transmits email across networks is SMTP.

Email transmission across the Internet relies on a protocol designed specifically to move messages between mail servers and toward their destination. Simple Mail Transfer Protocol is the standard used to transfer email from a client to a mail server and between servers to relay messages along the delivery path. It handles the routing, queuing, and delivery of mail, using commands that establish the session, specify the sender and recipient, and transfer the message data.

Other options perform different tasks: Hypertext Transfer Protocol is for web page access, File Transfer Protocol is for moving files, and Network News Transfer Protocol is for Usenet articles. For completeness, retrieving mail from a server uses protocols like IMAP or POP3, but the protocol that transmits email across networks is SMTP.