Post Office Protocol version 3 (POP3)
Post Office Protocol version 3 is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server.
進一步了解班尼·查尼（Benny Czarny）的著作《顛覆性的網路安全》
Post Office Protocol version 3 is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server.
