This tool helps you keep your electronic mailbox free of spam. It lets the legitimate messages pass through undisturbed while leaving suspect messages on the server. They are, in effect, invisible to the e-mail client. These messages can be re-examined later or just deleted after a given period of time. The SpamCop & other blacklisting services are fully supported. It works as a POP3 e-mail proxy with support for POP, APOP and IMAP mail servers.