With the new online Move-Mailbox functionality in Exchange Server 2010, invoked by calling the New-MoveRequest cmdlet, the time a mailbox is offline has been reduced to only seconds, and as such the end-user experience has been greatly improved.
There’s a mystery about early Exchange 2010 deployments: despite the much-publicized removal of single instance storage, sizes of Exchange 2010 databases have not increased. The same message has trickling back from all quarters, as businesses go live: after moving mailboxes, database sizes in Exchange 2010 are roughly the same as they were in Exchange 2007.
In a previous article I mentioned how to create users and computers in active directory, the first stage of testing the PST Importer (and ESA). The next step is to go to Exchange and create mailboxes to the users that we just created and for further comfortable management, add access permissions to them where needed.
If you currently allow your end-users to manage distribution group membership in a previous version of Exchange, you may be interested to know that like many things, the process for enabling this is completely different in Exchange 2010. This is because distribution group membership management permissions are now delegated through Role Based Access Control (RBAC).