My ISP block pop3 port 110 & smtp port 25.
I have own VPS mail server and i would like to use pop3 email.
How can i listen pop3 on both 443 & 110.
I have enable the forwarding in /proc/sys/net/ipv4/ip_forward file.
Type this command in shell >> iptables -A FORWARD -p tcp --sport 443 -i eth0 -o eth0 --dport 110 -j ACCEPT
Here is result in iptables
Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp spt:https dpt:pop3
When i access pop3 mail from Outlook got an error. Please check screenshot: