When a user wants to move Thunderbird data to Exchange Online, then it becomes neccessary to use relevant application like MailsDaddy Thunderbird to Office 365 Migration Tool. It is such a solution that allows the user to export single or multiple Thunderbird emails to Office 365 cloud. This light-weighted solution takes few MB data to store in Window OS and migrate all emails in few clicks. Since Microsoft does not provide any manual method to import TB MBOX data to OWA directly. Therefore given utility is fully capable to load, search and export large mailbox and also helpful to export the filtered email to Office 365. Thunderbird to Office 365 is a well-programmed application that allows you to use latest features and import Thunderbird emails in Office 365 platform. When, the application loads the mailbox data using autoload feature, it quickly generates the preview of email and provide multiple option to migrate Thundebird email to PST, Office 365, Outlook.com and Live Exchange.With these qualities, user can use the free demo version of the tool and convert first 20 emails from each mailbox to Office 365 Primary and Archive mailbox. For unlimited migration or more mailbox, you must purchase a license-key from MailsDaddy or Authorized vendor.