hdmilter - A daemon to throttle mail relay A simple way to throttle mail relay, avoiding becoming spamming source. How to compile Install developing files for libmemcached and libmilter, for example(Debian): $ sudo apt-get install libmemcached-dev libmilter-dev $ make How to run Configure postfix file(/etc/postfix/main.cf): smtpd_milters = inet:127.0.0.1:5800 milter_default_action=accept milter_connect_macros=client_addr milter_mail_macros=auth_authen auth_author auth_type milter_data_macros=i Startup from command line: ./startup.sh