Hi, I am pretty new to exchange server. I need to deploy an exchange server in our organization. There is an active directory domain in the organization. The domain name is abc.com. This is the active directory domain. But, the public domain of the organization is a different one. It is abc-us.com. The employees in our organization is having mail id's similar to user@abc-us.com If i install an exchange server, the users are from the internal domain. So, i would like to know how they will be able to access the mails. Can any one tell how their mails will be delivered? How should i configure my exchange server. Regards, Tom