The application has multiple functions for backing up your contacts, emails, and calendar events from selected accounts as PST files that you can save on your computer just in case.
All you have to do is select the Office 365 email that you want to back up. From there, CubexSoft Office 365 Backup & Restore will compile all the information on that account in a single file. You can also use this application to convert your Outlook inbox to PDF.
CubexSoft Office 365 Backup & Restore is an excellent application for saving and managing all the information on your Office 365 accounts in just a few easy steps.
Requires Android XP or higher
The trial version lets you make backup copies of the first 100 emails.