No one can directly import MBOX files to Office 365 therefore we have a third-party solution.
MailsDaddy MBOX to Office 365 Migration is an authentic solution to import MBOX/ MBX/MBS file-supported email client database into Office 365 account. Using this solution users can move multiple MBOZ fie into Cloud 365 accounts without any changes in original content. It offers users to open and view the preview of complete MBOX file emails in the preview port.
The software is compatible to shift single or multiple selected emails into the O365 platform. Here users are free to move MBOX files into Primary, In-Place archive, and Shared mailbox. It offers users to export unlimited size of MBOX file into Exchange 365 account. Here users can also import MBOZ file emails into the Live Exchange Server.
Software trial version also available so that users can examine it before purchase. The Free demo will help to import the first 20 emails per mailbox without any cost.