You cannot manually do Thunderbird for Office 365 conversion because these are too many conversions steps and additional email clients are also required. To make it hassle-free and reliable, we recommend the MailsDaddy Thunderbird to Office 365 migration tool. With the help of this amazing application, users can easily import emails from Thunderbird to Office 365 without any hindrance. Visit the official site to use the free demo version:

  • Instructive interface
  • Secure login panel
  • Bulk export from Thunderbird to Office 365
  • Convert mailbox with all key attributes
  • Trusted solution for Thunderbird mailbox
  • Primary and In-place Archive migration


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