On Mon, 07 Dec 2009 14:00:45 +0100 Frank Bonnet wrote: > Hello > > 1 - Is there a way to forbid log in of some Dovecot's users ? > I use NIS as authentication mechanism. > > 2 - Is it possible to forbid some machines (IP addresses ) to > connect to Dovecot server ? Yes, with Linux you can use iptables. --Frank Elsner