You are setting up a mail server to handle outgoing emails for your organization. Which protocol should be configured to ensure emails are sent from the client to the server and between mail servers?

Correct option is A

SMTP (Simple Mail Transfer Protocol) is specifically designed for sending emails. It ensures the successful transfer of emails from a client to the mail server and also facilitates communication between mail servers for email delivery.
Important Key Points:
1. SMTP is a push protocol and works on ports 25 (default), 465 (SSL), and 587 (TLS).
2. It is used in combination with POP or IMAP for a complete email system (sending and receiving).
Knowledge Booster:
· POP: Used to retrieve emails by downloading them to the client.
· IMAP: Allows users to access emails stored on the server without downloading.
· HTTP: Used for web-based communication, not for email transfer.