louisy64 – https://www.shoviv.com/blog/migrate-thunderbird-to-office-365/

Hey! This is Louis, an email data management expert. Here I’m revealing a way to move Thunderbird to Office 365 mailboxes. We required a third-party tool called Shoviv MBOX to Office 365 Migration to do this migration. This software moves the Thunderbird email to the Office 365 mailbox very fast, while keeping email data integrity intact. Install the demo version of the application and explore all its features.