>Is it possible to execute a system command upon the following smtpd client >restriction rejections? > >smtpd_client_restrictions = >reject_rbl_client zen.spamhaus.org, > reject_unknown_reverse_client_hostname, > reject_unknown_client_hostname > >Would like to automate insertion of client IP address into IP Tables >firewall rule.
Take a look at fail2ban, http://www.fail2ban.org/wiki/index.php/Main_Page D.
