Can anyone here please share some tips and planning on what is the best way to migrate the existing On Premise:
Microsoft Exchange Server 2010 SP3 - 2 Mailbox Server, total 2800 users mailboxes 6.2 TB size total
Symantec Enterprise Vault Server v10 - 1 Archive Server, 8.8 TB size total
to Office 365 with Exchange Archiving E3 or E4 license ?
What do I need to setup and what is the best way to migrate those data to the cloud safely with minimal interruption to user email flow / access.