[Dovecot] mail_max_userip_connections

Hi

Sometimes, I hit mail_max_userip_connections limit. As far as I know I'm the only person that does, but I would like to find out why before someone else hits the limit.

Is there a command available that can list the connections per IP? I'd like to find out which client is causing this. Or do you have a better suggestion? Should I just raise the limit (it's still at the default 10, which I never changed). What are the implications of this.

Thanks.

Simon