Simple Mail Transfer Protocol (SMTP) is TCP/IP's own messaging system for email.
Telnet Protocol Provides terminal emulation that allows a personal computer or workstation to act as a terminal, or access device, for a server.

Question

Quizplus · Accepted Answer

Telnet protocol does provide terminal emulation, but it is not a messaging system for email. SMTP is specifically designed for email communication.

Simple Mail Transfer Protocol (SMTP) Is TCP/IP's Own Messaging System