mailserv/mailserv — pull request #22 by Synchro (2013-12-20 14:48:35+00:00)
Title: Add brute-force control and rate/connection limiting to firewall

I normally use fail2ban for this kind of thing, but this is a simpler, lower-level approach I found on [this page](http://home.nuug.no/~peter/pf/en/bruteforce.html).