Use PowerShell for email migration to Office 365
Summary: Learn how to migrate email to Office 365 using Windows PowerShell.
When administrators first set up Office 365, many of them migrate email from existing systems. You can also do this by using the Office 365 administration user interface. You can also use Windows PowerShell to migrate email.
Office 365 licensing and Windows PowerShell
Use Windows PowerShell to migrate email to Office 365.