On Mon, 2008-07-28 at 17:23 +0200, suomi wrote: > Hi every > we had a havy pop3 attach yesterday morning: about 400'000 connects in > three hours from one single IP address within wandadoo.fr. > > the easiest way, to protect the dovecot server against such attacks > would be to limit the number of connections anyone can open from one > single IP address to the server in a certain time.
It's available in 1.1: # Maximum number of POP3 connections allowed for a user from each IP address. # NOTE: The username is compared case-sensitively. #mail_max_userip_connections = 3 Rick
