Migration from one Exchange version to another is not easy, but if you execute this task with professional software, then this Exchange to Exchange Migrationbecomes very easy. So use Shoviv Exchange Migration Tool to perform this migration task without losing a single piece of data. This tool allows users to add multiple Exchange mailboxes without any size limitations on them. It also provides a preview facility for the users to view the added data before processing the migration task. For more: Exchange 2010 to 2019 Migration Migrate Exchange 2013 to 2019 Exchange Server Backup