POPcon is a software that connects mail server programs like MS Exchange(TM) to one or more POP3 mailboxes. MS-Exchange(TM) does not have the ability to poll POP3 mailboxes, instead MS Exchange(TM) is built for a permanent internet connection with SMTP-protocol mail delivered directly to the machine MS Exchange(TM) is installed on. If you want to use MS Exchange(TM) with your internet providers POP3 mailboxes you need a product like POPcon.