http://blogs.technet.com/kpalmvig/archive/2008/03/10/how-to-bulk-creation-of-ad-users-and-exchange-mailboxes.aspxOver the past couple of months I have worked on more than one project where the customer wanted to create a new forest for the new Exchange 2007 installation. Normally you would migrate users from the old domain(s) with ADMT or another product but inen-USCommunityServer 2.1 SP1 (Build: 61025.2)