If you are planning to move your data from Thunderbird to Office 365, Live Exchange Server or Outlook.com then MailsDaddy Thunderbird to Office 365 Migration Utility is the best approach for you. It is a very lightweight utility that is capable of transferring mail and attachments from Thunderbird to Exchange on-Premises, Outlook.com and Office 365 platforms. With this solution, users can automatically load multiple Thunderbird files into the application using the auto-load button. After uploading the data, it generates the original preview of each selected email, along with the mail property and attachments. The best part of the solution, there are three separate export options to transfer Thunderbird files to Outlook 365, Exchange Live and Outlook PST format. Not only this, rather user can migrate the data to Primary and Archive mailbox of Exchange Server or Office 365. The application supports all Window editions such as Window 10, 8.1, 8, 7, XP and other earlier editions. The software is also available in demo version which allows converting first 20 emails from each folder. Highlighted features of Thunderbird to Office 365 Converter (1) Simple & User-friendly interface (2) Perform bulk export and migrate all data at once (3) Preview of selected email with corresponding attachments (4) Export mailbox to Outlook.com, Office 365 , Exchange On-premise and Outlook PST format (5) Upload data in Primary and Archive mailbox (6) Filter particular mail by To, From, Subject, Date etc. (7) Compatible with all Window editions.