Which of the following describes the role of a POP3 server when retrieving mail?

• A. It stores all mail permanently on the server without downloading.
• B. It downloads mail to the client and typically removes it from the server.
• C. It forwards mail to other servers.
• D. It encrypts mail on the server for security.

Answer: (B)

Retrieving mail with POP3 is about moving messages from the server to your email client. The standard behavior is to download those messages to the client and then remove them from the server, so the mailbox on the server stays small and you have a local copy for offline reading. This setup reflects POP3’s design for simple, device-specific access rather than keeping mail synchronized across devices. Some configurations can leave copies on the server, but that isn’t the typical retrieval pattern.

The other ideas describe functions not central to POP3 retrieval: forwarding mail to other servers is handled by mail transfer agents (SMTP), and encryption on the server is not what POP3 retrieval defines. Storing all mail permanently on the server without downloading aligns more with IMAP than POP3.