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Use Thunderbird to Office 365 migration tool to export mailbox in Cloud.

Best method to upload Thunderbird files in Office 365 platform without any extra effort. It preserves complete folder tree and provides secure solution from TB to Outlook 365.

  • The software has an easy-to-use interface for best experience with technical or non-technical user.
  • Browse and Auto load option to add single or multiple Thunderbird account data into the application.
  • Software scans the complete mailbox and forms the mail-structure with count of emails.
  • It shows the mail preview with entire content and attachments.
  • Save selected email and attachments into the given formats.
  • It easily installs on all Window editions of 32 & 64 bit.

Exclusive 10% discount

To get 10% discount use the JDSW10 coupon code during checkout.

Valuable Features of Thunderbird to Office 365 Migration Tool

Email Search Window: The software has an advanced feature that easily finds particular mail from search criteria.

Multiple Export Option: With Thunderbird to Outlook 365 utility, user can export Thunderbird mailbox to Office 365, Outlook.com, Exchange On-premise and Outlook PST format.

Export Thunderbird to Primary mailbox

User can directly migrate the data from Thunderbird to Office 365 Primary mailbox with similar folder structure.

Upload Thunderbird to O365 Archive mailbox

In addition of primary, software also allows you to import Thunderbird files in Archive mailbox.

Migrate all Data in New Folder

The tool allows adding entire content and structure to the new defined folder within Primary or Archive mailbox.

Clean algorithms

The scope of the software is error-free and bug-free so that it will never harm your data content and will safely transport mailbox to your destination.


I have a large folder structure, will it handle it?

Yes! This is our first objective that when it transferring data to Office 365 or other export platforms, do not lose a single folder.

I want to use this software on Window XP, will it work or not?

Yes! Definitely this window runs on XP. We designed this software to work on all windows platforms in a similar way.

I want to export Thunderbird data to Outlook.com. What is the process?

With this solution, it is quite simple; you will only need to put Outlook.com credential details in Office 365 login panel.

Can I use the demo version before purchasing the solution?

Yes of course! We offer to try our demo version first so that you can check the tools features. And then buy full version for unlimited migration from Thunderbird to Office 365.


I work in IT management and we used your product to convert Thunderbird files to Office 365. This software works brilliantly, it also keeps folder structure completely when we do it manually or with other software, it failed. Thank you for providing us this software.

Adam smith, New York


I am impressed with performance of the MailsDaddy Thunderbird to Office 365 Migration Tool. Within few clicks, I easily exported Thunderbird files into Exchange Online. The data integrity of the Thunderbird mailbox is maintained by the software even after the conversion process. Thanks for introducing such a convenient tool

Juliya Shimoy, Australia


Thunderbird to Office 365 is a remarkable utility. It solved my problem in just a few simple clicks and I was able to upload Thunderbird email to Office 365. Its email fitter option allows exporting only filtered emails in Exchange online, which gives me considerable profit.

Anna Rose, South America