Guide to Export Thunderbird Emails into PST File

In today's digital age, email communication is vital for both personal and professional purposes. Thunderbird, Mozilla's popular email client, is widely used by individuals and organizations worldwide. However, when it comes to migrating from Thunderbird to Microsoft Outlook, users often face challenges. This article will provide you with a comprehensive guide on how to export Thunderbird to PST (Personal Storage Table) format effortlessly.


Thunderbird is a versatile email client, but it may not always be the best choice for everyone. Microsoft Outlook, with its robust features and integration capabilities, is a preferred choice for many. Exporting your Thunderbird data to PST format allows for a seamless transition.

Why Export Thunderbird to PST?

There are several compelling reasons to export Thunderbird to PST:

Compatibility: PST files are compatible with Microsoft Outlook, making it easier to switch between email clients.

Data Backup: PST files serve as a reliable backup of your Thunderbird emails, ensuring you don't lose any important information.

Business Needs: Many organizations rely on Outlook for business communication, making PST conversion essential for collaboration.

Advanced Features: Outlook offers advanced features like calendar and task management, which Thunderbird lacks.

Preparing for the Export

Before you begin the export process, it's essential to prepare your system:

⦁ Ensure both Thunderbird and Outlook are installed on your computer.

⦁ Back up your Thunderbird profile to prevent data loss.

⦁ Close any unnecessary applications to avoid interruptions during the export.

Method 1: Manual Export

Step 1: Launch Thunderbird

Open Thunderbird on your computer.

Step 2: Configure Thunderbird

Configure Thunderbird to use the IMAP protocol for your email account if you haven't already.

Step 3: Export Emails to MBOX

1. Select the emails you want to export.

2. Right-click and choose "Save As."

3. Save the emails in MBOX format.

Step 4: Convert MBOX to PST

Use a reliable MBOX to PST converter tool to perform the conversion.

Step 5: Import PST to Outlook

1. Launch Outlook.

2. Go to "File" > "Open & Export" > "Import/Export."

3. Choose "Import from another program or file" and select PST as the file type.

Method 2: Using a Third-Party Tool

Step 1: Choose a Reliable Tool

Research and choose a reputable third-party tool for Thunderbird to PST conversion. I suggest the Shoviv MBOX Converter tool.

Step 2: Install and Launch the Tool

Install the selected tool and launch it on your computer.

Step 3: Add Thunderbird Mailbox as the Source

Specify Thunderbird MBOX files and add them to the software.

Step 4: Start the Conversion Process

Follow the tool's instructions to convert Thunderbird data to PST.

Step 5: Import PST to Outlook

Open Outlook and import the PST file created by the tool.

Troubleshooting Common Issues

Issue 1: Missing Emails

If some emails are missing after the export, double-check your export settings and the selected emails in Thunderbird.

Issue 2: Corrupted Data

In case of data corruption, consider using a data repair tool or contacting technical support for assistance.

Issue 3: Compatibility Problems

If you encounter compatibility issues, ensure that both Thunderbird and Outlook are up to date with the latest versions.

You might be interested in How to open MBOX file in Outlook | Open Google Takeout Files 

Best Practices for Successful Export

1. Regularly back up your data.

2. Keep your email clients and conversion tools updated.

3. Test the PST file thoroughly before relying on it for critical tasks.

Related blog: How to Backup Thunderbird Emails?


Exporting Thunderbird to PST is a crucial step for users looking to transition to Microsoft Outlook or ensure data backup and compatibility. By following the methods and best practices outlined in this guide, you can seamlessly export your Thunderbird data and enjoy the benefits of Microsoft Outlook.


Question: Is it possible to export Thunderbird to PST for free?

Answer: While manual methods exist, they can be complex. Using a reliable third-party tool may require a purchase, but it simplifies the process.

Question: Can I export my Thunderbird contacts along with emails to PST?

Answer: Yes, you can export Thunderbird contacts along with emails to PST using the same methods mentioned in this article.

Question: Can I Migrate my Emails into Outlook 365 Mailbox using a third-party tool?

Answer: Yes, With the help of Shoviv MBOX Migrator tool you can easily migrate Thunderbird to Office 365 in assle free manner.


15 Sep 2023

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