I found out that it was a single IP from the log files. That person (or bot) logs into the POP3 server and tries to authenticate itself. The problem is that it logs in as a different user each time and does ALOT of these logins per second, causing LDAP to overload with connections. Is there any way to limit the number of connections in the cyrus server using some config parameter? Thanks. __________________________________________________________________________________________ Check out the New Yahoo! Mail - Fire up a more powerful email and get things done faster. (http://advision.webevents.yahoo.com/mailbeta) ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html