Which protocol retains a message in a mailbox on a server, even after the message is accessed by a user on a local client device?

Which protocol retains a message in a mailbox on a server, even after the message is accessed by a user on a local client device?

• IMAP4
• SMTP
• DNS
• POP3

Explanation: The IMAP4 protocol will keep any message accessed by a client device in the mailbox on the server. The message is removed from the mailbox only after it is deleted by a user on the client device.

Exam with this question: Networking Essentials (Version 2) - Modules 9 - 12: Data Communications and Network Services Pre-Test Exam
Exam with this question: 12.7.2 Module 12 - Application Layer Services Quiz