Our company (denver.com) has many divisions, each of them (newyork.com, contoso.com, paris.com etc..)have their own Domain Controllers to authenticate their users. I wanted to have a single exchange server in denver.comto serve all the divisions. but each divisions will have their own email address like(joe@newyork.com. jack@contoso.com, mike@paris.com) how do i meet this with a single exchange server deployment..?

Hi, Regarding how to host multiple domains on a single server, two steps are needed. One is create the accepted domains based on the divisions. The other one is create the email address policies. The detailed information you can refer to the below link: http://www.petri.co.il/configure-exchange-2007-recieve-email-other-domains.htm Thanks Allen