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Written By Amit Chandel
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Updated on August 5th, 2026
Best Way to Convert MBOX to MSG on Windows and Mac in 2026
User Query: I switched to Outlook from the popular Thunderbird, which supports MBOX files. Outlook does not open the MBOX-formatted file. Now the problem is that I need to open those files in Outlook, for which I want to convert MBOX to MSG format. Is there a way to convert MBOX files to MSG format so I can actually use these emails?
Are you one of those who have MBOX files on your system and want to convert them to MSG format so you can access them in Outlook? This blog walks you through what you can actually do about it. It covers a manual method you can try on your own, as well as a dedicated software tool called MailConverterTools MBOX Converter Tool. Both methods are explained in simple steps so you can pick what works best for your situation.
Common Reasons to Convert MBOX File to MSG
- To access the MBOX file in Outlook, users need to convert the MBOX file to MSG.
- MSG format works better in the corporate environment with Microsoft Tools.
- It becomes easy to share individual MSG files with colleagues.
- It is easier to organize, search, and manage MSG files directly in Outlook.
- Many organisations use the MSG format for compliance and audit purposes.
- Backing up specific emails becomes more practical in a separate MSG file.
DIY Solution to Convert MBOX to MSG Format
You can manually convert MBOX files to MSG format with the help of Mozilla Thunderbird and Microsoft Outlook. Although this method is free, it can be time-consuming because emails need to be saved individually. Follow the steps below:
Steps to Change MBOX Files into MSG
- Install Mozilla Thunderbird on your computer.
- Add the ImportExportTools NG add-on and import the MBOX file into Thunderbird.
- Save the emails from Thunderbird in EML format.
- Open Microsoft Outlook on your system.
- Drag and drop the EML files into an Outlook folder.
- Open the email in Outlook and click File > Save As.
- Select MSG format (*.msg) and click Save.
Shortfalls of the DIY Approach
- This approach takes too much time to convert the file.
- You have to install Thunderbird and Outlook.
- No option to convert files in bulk to avoid repetitions.
- Technical knowledge is required to perform all steps correctly.
- Large MBOX files may slow down the process or cause errors.
Advanced Tool Solution to Convert MBOX to MSG Format
The MailConverterTools MBOX Converter Software is an efficient utility that converts MBOX files into multiple formats. It can convert MBOX to CSV, MSG, PDF, PST, and more. It has many advance feature that allows to customize the final output result. More than file formats, the tool is also used to convert MBOX to Courier Mail, IMAP, Gmail, and other email clients. You do not have to worry about file size or how many files you are converting. It handles both without any set limit. Below are the simple steps for the conversion.
Steps to Convert MBOX to MSG in Bulk
- Download the MSG File Converter Software.
- Then, add your MBOX files and click the Proceed button.
- Further, preview and select files, and click the Proceed button.
- Afterwards, choose the MSG format from the list.
- Lastly, apply the filters, choose the path, and click Start Process.
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Also Read: You can read this blog to convert MBOX to EML format in simple steps. |
Successful User Case:
A user moved from Thunderbird to Outlook to enhance email management in a corporate environment. Their old data was stored in MBOX format, but Outlook does not support this MBOX format. To convert those files into an accessible format by Outlook, like MSG, the manual method was not enough. Because the manual method takes a lot of time and cannot handle bulk migration.
To ease the task, the user used the professional MailConverterTools MBOX File Converter Software. This handles the multiple file conversion into MSG format from MBOX in very minimal time. Also, it helped to keep everything organised and structured. The process to export MBOX to MSG completed successfully without any data loss.
Relevant post: Move Claws Mail to Office 365
Conclusion
The file formats matter a lot when you move from one email client to another. There is no direct way to convert MBOX to MSG, but there are still some indirect approaches. You can use the suggested method to convert your MBOX file to the MSG format. Using the manual method for some files will work well, but for bulk conversion, the only way is to use the advanced tool.
Frequently Asked Questions
Q.1 Which Is the Best Software to Convert MBOX to MSG?
Ans: MailConverterTools MBOX Converter Tool is one of the reliable solutions to convert MBOX files into MSG format. It supports bulk conversion, maintains email formatting, and provides multiple advanced features for smooth migration.
Q.2 Is It Safe to Convert MBOX File to MSG Format?
Ans: Yes, it is completely safe if you use a trusted method or professional software. A reliable tool preserves email properties, attachments, metadata, and folder structure during the conversion process.
Q.3 Can I Convert MBOX File to MSG Without Any Technical Knowledge?
Ans: Yes, the MailConverterTools MBOX Converter Tool is designed with a simple and user-friendly interface, allowing both technical and non-technical users to perform the conversion easily.
Q.4 Is the User Interface Complex to Export MBOX to MSG?
Ans: No, the software comes with an easy-to-use interface that simplifies the entire conversion process. Users can convert MBOX files to MSG format in just a few clicks.
Q.5 Can I Export MBOX to MSG Files in Bulk?
Ans: Yes, the MailConverterTools MBOX Converter Tool supports bulk conversion, allowing users to export multiple MBOX files into MSG format simultaneously without file size restrictions.
Q.6 Can I Export MBOX to MSG for Free Without Losing Email Data?
Ans: Yes, you can use the manual method for free conversion, but it is suitable only for a limited number of emails and requires extra effort. For secure bulk conversion without data loss, using the MailConverterTools MBOX Converter Tool is a more efficient option.
About The Author:
Meet Amit, an experienced SEO expert and content planner. He uses his creativity and strategy to create content that grabs attention and helps brands reach their goals. With solid skills in digital marketing and content planning, Amit helps businesses succeed online.
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