If you want to import MBOX into Office 365 then, I would like to suggest Shoviv MBOX to Office 365 migration tool that can easily export your MBOX with all attachments directly into your Office 365 account. Using this tool, users easily migrate multiple MBOX files. Besides the Office 365 migration, it exports MBOX into Outlook PST and Live-Exchange server as well.
Software Page: https://www.shoviv.com/mbox-to-office365.html
|My Other Website|
|My Other Other Website|
MBOX to Office 365 Migration