POP3 (Post Office Protocol version 3)

POP3 (Post Office Protocol version 3) is a standard email retrieval protocol used by email clients to retrieve emails from a remote email server. POP3 allows users to download emails from a server to their local computer or device and store them locally for offline access. POP3 operates over TCP/IP and provides commands for authentication, downloading messages, marking messages for deletion, and managing mailbox folders on the server.