Hi Guys,
I am in big trouble. My email server on my Mac Mini is no longer working any more. I am running a small business and I use this email exchange a lot. The setup was originally with Mac mini, Airport Extreme router and ADSL Telstra modem. Now I have the new NBN connection and everything stuffed up. I need help. All my port forwarding and other details were setup in Airport extreme router. I was following one of the Youtube course to setup everthing. With this NBN, I have no clue at all. Please someone help me.