How to export Thunderbird emails to Office 365?

As you all know Thunderbird is a very famous email client that is used by millions of users in the world. But it has some drawbacks, that is why we need a better option to replace it. Office 365 is a better option which comes with multiple advanced features like-

1. Anywhere accessibility, not dependent on system for Office installation.

2. Office 365 application comes with more user friendly services like Teams, Yammer, SharePoint, etc.

If you want to migrate Thunderbird emails to Office 365, without installing any third party application on your system. You can try this free manual method which is a very convenient way to migrate emails. To get detailed information about the method, click on the link:




6 Replies
Alexa Mendoza

For Thunderbird to office 365 migration, you can also take the help of Shoviv MBOX to Office 365 migration tool. This email migration tool can flawlessly export Thunderbird (MBOX) to Office 365 account. Besides, this also supports MBOX format for 20 other email clients such as Eudora, Spicebird, Apple Mails, and many more. This miraculous application also allows exporting MBOX into Live Exchange, Outlook PST, EML, and MSG. Get a free trial today to ensure its MBOX exporting ability as well.

Also Read:


Somit Vishwakarma

If you are looking for a tool to import Thunderbird profile email to Office 365 then you have to take the help of MailsDaddy Thunderbird to Office 365 migration tool. This is a single solution that supports both Thunderbird MBOX and Maildir files. Users can install the tool on all Windows OS and import every single email from Thunderbird to Office 365 without any hassle. The software also helps to move TB mailbox into PST and Live Exchange mailbox. You can also use the demo edition first and migrate 20 emails per mailbox.

Read more:

Somit Vishwakarma

If you want to export Thunderbird data with contact and calendar then read it here: Export Thunderbird to Office 365

Deepak Bisht

If you want to migrate Thunderbird emails to Office 365, then try SysCurve MBOX to Office 365 migration tool. With the help of this tool, you can easily migrate Thunderbird to Office 365 cloud platform.

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Rajat Rajput
Hi, I would suggest using the best and most reliable solution available in the market to convert MBOX to PST file format. Check out the advanced DRS MBOX to PST Converter which can easily convert MBOX files to EML, MSG, HTML, PST, PDF, Gmail, Yahoo, Hotmail, etc.
Mark Wilson

The manual method has two phases. In the first phase, you have to migrate MBOX file data to PST file format, and then convert the PST file into Office 365. Let’s discuss those briefly:

Convert the MBOX file from Thunderbird to Outlook
At first, create a new folder on your system.
Launch Thunderbird, open the folder where the emails are stored, which you want to migrate.
Choose the emails and then click on Save as, an option from the menu.
Browse the folder (Created on the first step) save the e-mails on it.
Import e-mails from Outlook to Office 365
Open the Outlook application on your system.
Browse the folder where you want to save the Thunderbird emails, or you can create a new folder. (make a click on the folder tab. After that, choose the new folder option, and create a new folder)
Now, click on the Ok button. The folder you have created will be shown on the left side of the email application.
Now, click on the folder to view/open its content at the center panel.
At last, drag all the emails from the desktop folder to this folder in Outlook.


I hope this manual method will be helpful!

Mark Wilson