MBOX file is created by various email clients such as Gmail, WebMail, Thunderbird, Entourage, SeaMonkey, Netscape, etc. But Office 365 does not support MBOX file format.
Here the user has two options:
First: Convert Thunderbird data to PST format and then follow the network upload method.
Second: Use the best MBOX to Office 365 migration tool and export email from MBOX to Office 365 mailbox in few easy clicks.
The second method is quite easy for both technical or non-technical users so most of the users search for it.
I would like to suggest MailsDaddy MBOX to Office 365 Migration Tool to export single or multiple MBOX files to Office 365 account in few easy clicks. With the software, users can easily upload MBOX files to Office 365 default, In-place archive, and
shared mailbox.
Read more:
https://www.mailsdaddy.com/mbox-to-office-365-migration-tool/
Blog:
https://morioh.com/p/d8dc01c03067
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)