Hi expert people I need your help What is the technical infrastructure requirement for Exchange server 2003 or 2007? Can any one give the guide or tell me what the technical requirement to setup live exchange server is? I mean I need exchange server to be accusable internally and externally Outlook web access mobile access and all the functions to be available internally and externally More over to this I need the infrastructure for it By the meaning of How many public IP address is required How many servers and every one will do what? And so on I know its not easy requirement Its kind of project I believe there is presentation explain this but I am not able to get it yet I hope you can help in this matter