iptables rule assistance
would much appreciate some advice on an iptables rule if possible
website on dedicated IP 123.123.123
need to stop any port 25 connection to that Ip on our server from any incoming IP
basically what we are attempting to do is stop anybody sending emails to website.com who is on dedicated IP 123.123.123
drop all incoming packets to port 25 only for IP 123.123.123
his mx and mail entries were removed from dns zone several days ago and does not appear to slow the incoming spam.
Yes we blocked several hundred IPs from logs, makes little or no difference.
Yes we did netstat -anl and block any IP to that IP on port 25 but they keep changing IPs
oh and yes we already have :blackhole: for his email, we just want to drop any connection so the senders finally have a rest, incoming is about 100 - 300 emails per minute.
thankyou kindly for any advice or assistance
