I have Exchange (Small Business Server) set up so that it will use the pop3 connector to retrieve mail, from an ISP via a modem. It worked fine when I had everything in SBS 4.5 but when I upgrade to SBS 2000 it no longer retrieves the mail. I get the following string of messages:
The delivery service is logging as a POP3 client on port 110
POP3: An error occurred during a POP3 transaction to host <postino.interar.com.ar [22.214.171.124]>. For user <email@example.com>. The error is 10065
POP3: Failed to check the POP3 account for firstname.lastname@example.org at host postino.interar.com.ar on port 110. The error is 10065
The individual POP3 accounts have been checked for incoming messages
Flushing transaction complete
MSDN is less than helpful!