Here's our current environment: Forest 1: Running Exchange 2003 in the parent domain with 6500 mailboxes. Active Directory is Windows 2000. Running Lotus Notes in the child domain with about 1000 users. Forest 2: Running Exchange 5.5 in a Windows 2000 Active Directory domain with about 500 users. What we want accomplished is to consolidate all of our messaging systems to one system using Exchange 2003 in a new Forest. We are also planning on consolidating all of these domains to this domain next year. So what we want now is to have one messaging system in a new domain but the users would still logon to their current domain for file shares / printers. These same users will be migrated to the new domain that Exchange would be placed in a year from now. Is this possible and if so how is the best way to approach this? Would there be any 3rd party tools that we would need since we have Exchange 5.5 and Lotus Notes?
For sure, use the tools from www.Priasoft.com for 5.5 migration and www.binarytree.com for lotus. I have used both and hands down they are the best. Good luck!
