Which of the following is true about the POP3 protocol?

The Post Office Protocol version 3 (POP3) is specifically designed to retrieve emails from a mail server. This means it allows a client, such as an email application, to connect to the mail server and download messages stored there for offline access. POP3 is particularly useful for users who prefer to have their messages stored locally rather than on a server, which can help in managing their email and reducing server storage use.

When using POP3, once the emails are downloaded to the client, they are typically removed from the server, making it suitable for users who do not need to access their emails from multiple devices. This is why understanding the purpose of POP3 is essential in distinguishing it from other email protocols, particularly those that handle outgoing mail or offer different mechanisms for message encryption and transmission.