What does POP3 stand for?

POP3 stands for Post Office Protocol version 3. It is a standard internet protocol used by email clients to retrieve email from a remote server. When an email client uses POP3, it connects to the server and downloads emails to the local device, often removing them from the server. This protocol simplifies email access, allowing users to manage their messages efficiently without needing a continuous internet connection after downloading. It is particularly useful for users who prefer to read their emails offline and want to store them securely on their devices.

The other options do not accurately reflect the function or definition of POP3. "Protocol Over Post," "Public Online Post," and "Postal Offline Protocol" do not convey the standard terminology or correct use case associated with the POP3 protocol, making them incorrect.