Is there is any way to migrate Office 365 from GroupWise
How we can move from GroupWise to Office 365 without having any major issue such as data losses, is there is any method or tool which can easily migrate groupWise mailbox into office 365. Recently i try many free tools but non of them work properly. each mailbox size is around 2 GB approx. Please suggest best solution regarding this issue.
Thanks and Regards