Office 365 is a cloud service that provides various outstanding features rather than Mozilla Thunderbird. To migrate Thunderbird mailbox to Office 365, users can use MailsDaddy Thunderbird to Office 365 migration tool. This single tool easily manages folders, subfolders, HTML formatting, inline images, attachments, and various other properties in an Office 365 account. It does not require any kind of technical skill as well as it has multiple features and export options.
If you choose the free demo version first then it provides you 20 emails from each mailbox. Get more details on the official site.