I'm setting up a windows 2008 server with exchange 2007. I have installed exchange 2007 and I can send out and send within my network. I can't receive email from the outside. I have a sonicwall pro 2040 and smtp port is open.
1st. question. if my modem address is say 22.22.22.xx do i create an mx record pointing to this ip address or does it need a new second static ip, is the mx record created from my hosting company or from my isp. what am i missing to make this work, thanks.
2nd question: Do I create a subdomain, for example my domain is called dog1940.com, should I create mail.dog1940.com and then point the ip above to it and create an mx record to that subdomain.