Move users from W2K2 AD forest to new W2K3 forest

I have experience in migrating mail systems.  However, I don't think you can have an Exchange organization that spans multiple forests.   Here is a MS article that talks about the situation:  http://support.microsoft.com/?kbid=839049

I think what you will want to do is create the new Forest, and install a new Exchange origanization in the forest.  Then migrate the users and machines to the new forest.

After, you can migrate the mail from the old server to the new server.  There are several techniques for this...one simple one might be to drop the mail to a *.pst file and the import the mial on the new server.

Another approach is to use the Exchange Migration Wizard.  This wizard (provided by Exchange 2003) allows you to perform InterOrganization migrations.  This might be the easiest solution for you...

http://www.msexchange.org/tutorials/Exchange-Migration-Wizard.html


Hope some of this information is helpful/....

-later

Thanks for the quick respones NJ. I would like to clarify that not all users will be moved from the old forest to the new forest. For a quick recap, this is what I plan to do:

-Create the new W2K3 Forest Root domain
-Install the new E2K3 server in the new forest
-Create a trust between the two Forests
-Move security principals (users, computers, groups) to new forest
-Move all mailboxs for effected users into new exchange organization.
-go home and get a good nights sleep.  


does look look correct?


thanks