Originally Posted by skeeta
I have manually tried to correct these dns entries but seem to be getting nowhere.
What did you mean with manually corrected?
Open the ISPCONFIG controlpanel, go to the DNS-Manager, open the primary DNS-Record for your Domain, replace the IP 192.168.1.103 with your public IP Address and replace the IP 192.168.1.102 from the www A-Record also with your public IP address. Then configure your router that connections on port 80 are forwarded to IP: 192.168.1.102 and SMTP connections are forwarded to IP: 192.168.1.103
But one question: Why do you use two internal IP's on your server, when you only have one static IP that can be forwarded?