Hi! I've got simiilar problem with JAMES. I'm using JAMES on win2000 with mysql-db mail storage and server breaks the connection after about 60 seconds, and what is more changing connection timeout value in conf do not change this. It happens when having more than ~20000 messages in inbox.
Rafal -- Sent from the James - Users forum at Nabble.com: http://www.nabble.com/POP3Handler-read-timed-out---can%27t-get-email-t198711.html#a603823