Migrating user’s mailboxes from one Exchange Server to another involves a lot of complications and complex Powershell cmdlets to be executed for import and Export PSTs. Even after all this,there is no surety about the future of the migrated user’s mailboxes and moreover, there is a risk of data loss during migration as well.
So, if you want to get rid of these complications and want to save a lot of time and efforts, then try professional exchange Migration tool like Stellar EDB to PST Converter. This tool is a one-stop solution to assist you in this complicated Exchange Migration as it automates the migration of folders to another Exchange Server without much hassle. All you need to do is to select the offline users and export them to Exchange server 2010