Migrate Exchange 2003, 2007, 2010, 2013, 2016 & 2019 to Office 365 and Exchange Server to Exchange Server can be done easily with Exchange Migration Software. The Software delivers numerous User-oriented features to users. The Software can effortlessly migrate multiple mailboxes without any restriction on the size limit of source mailboxes. Shoviv Exchange Migration Software is capable of migrating source mailboxes like EDB files, Office 365 Mailboxes, Live Exchange Mailboxes, and Outlook Stores into the Office 365, Live Exchange (On-premises) and Outlook PST.

For more info - Exchange Server Upgrade