MBOX file supports Gmail, Webmail, Thunderbird, Entourage, SeaMonkey, and various others. MailsDaddy MBOX to Office 365 migration tool is used to import MBOX files to Office 365 primary, in-place archive, and shared mailbox in a few simple clicks. The software runs on all Windows OS and easily migrates large or every single email from MBOX to Office 365. The free demo edition of the software exports 20 emails from each folder.
Free download: https://www.mailsdaddy.com/mbo....x-to-office-365-migr