Linux and windows Forum by Anil Raut

Mails are not delivering from Mail Queue Manager and throwing connection refused error then just follow the following steps and add the iptables rules:

1) Go to shell of Linux server.

2) service iptables save

3) service iptables stop

4) Add following rules

iptables -A INPUT -p tcp –dport 953 -j ACCEPT
iptables -A INPUT -p tcp –dport 53 -j ACCEPT
iptables -A INPUT -p udp –dport 53 -j ACCEPT
iptables -A INPUT -p udp –dport 953 -j ACCEPT

5) service iptables start