On Wed, 2010-11-17 at 21:17 +0100, Attila Nagy wrote: > pop3-login: Error: net_connect_unix(pop3) failed: Connection refused
Right. This is the main problem. So the question becomes why is the connection being refused. > I've checked, auth's start time is yesterday, so it wasn't restarted. I > guess what remains is the resource limit (client_limit maybe?). If that happens, there should be a log entry. You can grep process_limit and client_limit from logs. > The strange thing is according to tcpdump, dovecot does very few LDAP > lookups, and they are answered in a reasonable time, but I haven't done > a strict correlation with the above errors. This shouldn't have anything to do with authentication. > How does dovecot logs timed out LDAP lookups? "Connection appears to be hanging, reconnecting" I usually log errors to a different log file. Normally that file should be empty, so you can easily see all the errors and warnings that could be causing problems. log_path = /var/log/dovecot-errors.log info_log_path = /var/log/dovecot-info.log
