How to Import OST to Thunderbird? Step-by-Step Guide

Why Import Outlook OST Files into Thunderbird?

There are many reasons to move their mailbox data from Outlook OST files into Thunderbird. Below are some major reasons for that :

• Thunderbird is a completely free and open-source platform. It can be downloaded easily and used without paying any cost.
• Mozilla Thunderbird runs smoothly on Windows, macOS, and Linux. It ensures a smooth workflow without hassle.
• Thunderbird provides a wide range of add-ons, themes, and extensions. Users can personalize the interface, add productivity tools, and enhance email management.
• Thunderbird lets users retain their mailbox data from OST files without locking them into Microsoft’s ecosystem.
• In Thunderbird, users can easily transfer imported data between computers, devices, or operating systems.

Manual Methods to Import OST to Thunderbird

Manual methods are a free option for users to try when they want to migrate email data. However, Thunderbird does not support OST files directly; these methods involve a few extra steps. The given method is divided into two steps to help you import OST File into Thunderbird:

Method 1: Export OST to PST and Then Convert

1. To begin with, open Outlook > File > Open & Export > Import/Export.
2. Then, choose Export to a File > Next.
3. Furthermore, choose Outlook Data File (.pst) > Next.
4. Afterwards, choose the OST mailbox to export data and click Next.
5. Then, choose the destination to save and press Next.
6. At last, click on Finish.

Method 2: Import Converted File into Thunderbird

1. Firstly, set Microsoft Outlook as the default email application on your system.
2. Then, launch Mozilla Thunderbird and open the Menu tab.
3. After that, navigate to tools and select Import to open the Import Wizard.
4. Now, choose Import from Outlook and click Continue
5. Furthermore, select the Outlook data you want to import, then press Continue.
6. Finally, click the Start Import button.

User Query: “I tried the manual method to move my Outlook data, but I ran into some problems during the process. The import didn’t bring all my emails, and some folders are missing. How do I import files to Thunderbird? Without losing data.

Automated Solution to Import OST to Thunderbird

Manual methods work in some cases, but they come with limitations such as the risk of data loss, incomplete transfers, and lengthy processes. To overcome this limitation, we use a conversion tool like the OST to PST Conversion Tool to import OST file to Thunderbird.

Steps to Migrate an OST File Using an Automated Tool

1. Firstly, download and launch the OST to PST Conversion Tool.

2. Then, select the OST file and click Next.

3. After that, tick & preview the important folders to import and click Next. 

4. Now, choose the MBOX file format and use the features accordingly.

5. At last, set the location and click on Convert.

Advantages of Automated Solution:

1. You do not need to first convert OST to PST or MBOX separately.
2. This tool ensures folder hierarchy, attachments, contacts, and calendar entries remain intact.
3. It imports multiple OST files into Thunderbird at once, saving significant time.
4. This tool provides an easy-to-use dashboard that is suitable for both technical and non-technical users.
5. It provides the option to migrate only specific folders or items instead of the entire OST file.

Also Read – Convert OST to HTML

Conclusion

To conclude, migrating Outlook data into Thunderbird is hard because of file compatibility differences, but with the right approach, it becomes easy to handle. Manual methods such as PST export and IMAP sync can work, but these are lengthy processes and can be risky for large or corrupted files. On the other hand, an automated tool offers you a faster process to import OST to Thunderbird without any data loss.

Frequently Asked Questions