Hi everybody.SCENARIO:Two W2K3 Domains in two separate AD forests;Two Exchange organizations (one in each forest).GAL synchronization between the Exchange Organizations.Each Exchange Organization is mixed (E2K3/E2K7).NEEDS:Customer need torestructure the two AD Domains in one new AD Forest so that the new scenario will be: ForestRootDomain / \ / \ FirstNewDomain SecondNewDomainEach new domain will be placed in his own AD tree (so not a child domain of the root). AD reorganization will be through ADMT...ISSUE: Need also to restructure thetwoexchange organizations from the old domains, in a new organization in the new AD forestI found "How-To" about reorganization of Exchange, but only between domains of the same forest.Is there some guideline in the exchange library (or somewhere) about my case?Thank you in advance.Pierluigi

Since you can't 'restructure' separate forests into a single one you'll have to perform a full migration of each domain into the new, third forest. Simply build out the new forest and each domain and then setup trust relationships as detailed in the ADMT guides between forest 1 and FirstNewDomain, and forest 2 and SecondNewDomain. Then migrate all of your objects from each source domain into the associated target domain. Just follow the recommendations in the ADMT guide under the intra-org (or intra-forest) sections.

Hello Pierluigi, Agree with Jeff for AD objects migration. For Exchange cross-forest migration you may check Scenario 2 in below article http://technet.microsoft.com/en-us/library/bb693318(EXCHG.80).aspx

Hi Jeff, Hi Amit and thank for replay. Sorry but your answer didn't help me. I try to better explain my issue. Firts of all: my problem is that my old domains (both of them are root forest domain and are the only domains of their forest)have single-label FQDN name. I want to arrange thisbut I cannot usedomain rename. As you understand, In this moment I have a cross-forest exchange organization. While restructuring my old domains in a bare new forest I also need to transition the cross-forest exchange organization in a new single-forest one. This is by design because I cannot put to two exchange organization in one AD forest. I know I can use ADMT in order toconsolidate/migrate/re-organize/restructure AD domains in a New separated Forest. So, based on my scenario I will: A) create the new ForestRootDomain B) create a new FirstDomain (in the same forest I createdat point A but in a separate Tree); C)create a new SecondDomain (in the same forest I createdat point A but in a separate Tree); note that this is the customer requirements about the new AD forest design. D) migrate User/Group, workstation and member server from the old domains (both of them are in a seprated forest) to the new ones through ADMT. ThanI need to transition the Exchange organizations from the 2 old forests. I found documentation about how to transition Exchange from a Single-Forest to a Cross-Forest. Didn't find anything about transition from cross-forest to single-forest. Some help? Thanks!

PierCC wrote: This is by design because I cannot put to two exchange organization in one AD forest. Correct, you will have to migrate everything. Maybe the terminology is confusing you? Forget about the Exchange portion of the scenario for the time-being, Exchange mailboxes are tied to AD user accounts, so the reorganization of the AD objects (users, groups, contacts, etc) as what you should be thinking about. The ADMT Migration Guide is what you should be looking through if you haven't already found it: http://www.microsoft.com/downloads/details.aspx?familyid=D99EF770-3BBB-4B9E-A8BC-01E9F7EF7342&displaylang=en There is no way to simply'transition' Exchange between forests. You have to stand up new Exchange servers in the new forest and migrate the mailbox content AFTER you already have new user accounts created in the target domains for each source domain account. If there are a large number of objects you may want to look into the Quest Migration Manager toolkit for a more third-party tool with more features than the native ADMT.

Thanks for your help. I know thatall the procedure is dependent from ADMT and all starts from it but.. my fear is about mantaining e-mail services while migration through of exchange through move-mailbox, GAL syncronization,etc... I found this one: http://technet.microsoft.com/en-us/library/bb124363(EXCHG.80).aspx. My scenario is a little different because: the source is a cross-forest organization with Exchange2007; the target is a single-forest. Do you think the procedure is more or less equivalent ?