| by Scott Kilroy

Email – If port 25 is blocked

If your isp blocks port 25 (it should) redirect traffic coming in on port 2525 to port 25 /sbin/iptables -t nat -I PREROUTING -p tcp –dport 2525 -j REDIRECT –to-port 25 # make it so that this command runs on server boot up. if ! grep -qai 2525 /etc/rc.local; then echo ‘/sbin/iptables -t nat -I PREROUTING -p tcp –dport 2525 -j REDIRECT –to-port 25’ >> /etc/rc.local fi

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