1) Set the following vraiables in [mysqld] section of the mysql my.cnf file, if the dont exist: max_connections = 500 max_user_connections = 500 2) I guess you use courier, check the authdaemon and pop3 files in /etc/courier, they contain a varaible for the max number of simultanious connections. Raise that number and restart the courier pop3 daemon.
