If you can’t access your OST file and want to Transfer/Import Outlook OST to Office 365. In this situation, you can try the best third-party tool eSoftTools OST to Office 365 Converter tool. It can migrate all data into a fresh Office 365 folder with all email properties like to, cc, bcc, subject, time, date, etc. if users have a lot of data and they want to recover only specific mail so they can select single as well as multiple files for the conversion. A free demo file is also available to Import Outlook OST to Office 365 format.
Read More:- Transfer/Import Outlook OST to Office 365
Steps to Transfer/Import Outlook OST to Office 365
Log in to your Office 365 account, go to “Admin Center,” then click on “Exchange.” The Exchange Admin Center(EMC) window will appear.
Now go to “Permissions” and double click on “Organization Management.
” A new popup appears; click on the “+” sign to select “Mailbox Import Export.”
Click on “Add,” then click on “Ok.”
Regards,
Rachel Gomez