I'm running a mail server are using port forwarding to redirect to the correct PC.
Once I've added the ports everything works fine for a few hours, but then randomly it stops working. The only way to fix it is delete the ports and re-add them.
I have to repeat this cycle weekly!
Server Name: Mail
External Port Start: 25
External Port End: 25
Protocol: TCP
Internal Port Start: 25
Internal Port End: 25
Server IP Address: 192.168.1.199
Schedule Rule: Always
Remote IP: