I think you want to Migrate from Thunderbird to Office 365 wihtout facing any trouble. So use the most popular and effective third-party tool that's named eSoftTools Thunderbird to Outlook Converter Software. Using this tool users can smoothly Migrate
from Thunderbird to Office 365, Gmail, and Yahoo Mail as well as multiple other cloud-based email client applications.
Read more:-
https://www.esofttools.com/thunderbird-to-outlook-converter.html
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