How to Convert MBOX to MSG Format? Simple Guide

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Updated on
May 5, 2025

4 minutes Read

Summary: If you’re moving from Mozilla Thunderbird to Microsoft Outlook, you might need a solution to convert MBOX to MSG. Well, an MSG file is a proprietary format used by Microsoft Outlook. However, it can be tough for users with no technical expertise to perform it. Therefore, we will help you accomplish the task effectively and effortlessly. 

Additionally, we are going to explore manuals and a reliable MBOX Converter Tool for a quick and secure outcome. Before we begin, read the importance of this process. 

Why Convert MBOX to MSG?

There are several scenarios where converting MBOX to MSG becomes necessary. Further, we are going to provide some common reasons. 

  • In case you want to move from Thunderbird to Outlook, you need to save the MBOX file to MSG. 
  • With this process, you can share individual emails with MS Outlook without exposing all the email data. 
  • Additionally, your data will be preserved in a format compatible with Microsoft Windows only.

Convert MBOX to MSG – Effective Solutions

Once you understand why users save MBOX files into MSG, you will get your hands on verified techniques. In this section, we will be discussing all the approaches one by one. Out of them, pick the procedure that fits best to avoid further issues. 

Way 1. Free Procedure to Convert MBOX Files to MSG

Although you can use this approach for the outcome, it contains lengthy and risky steps. To avoid the risk and need a simple method, you can go to another technique (Professional). 

Step 1. Save Emails From MBOX to EML 

  1. To start it, run Mozilla Thunderbird and then add ImportExportTools NG (SettingsAdd-ons and Themes option. 
  2. Now, import the MBOX file into a folder in Thunderbird.
  3. Later, choose the folder with the MBOX file and right tap -> ImportExportTools NG.
  4. Afterward, pick Export All Messages in Folder -> EML Message Format.
  5. Now, assign the location to save it in your system. 

Step 2. Export EML into MSG Format

  1. For this, you have to drag the converted EML files to MS Outlook. 
  2. Further, choose the EML folder or file and tap File -> Save As.
  3. Under Save as type, select the Outlook Message Format- Unicode (.msg) option. 
  4. In the end, press the Save to convert option. 
  5. Additionally, repeat this process for multiple email conversions. 

Way 2. Automated Technique to Export MBOX to MSG

EmailDiver MBOX File Converter Tool is the best and ultimate option to get the desired outcome securely. Unlike the above approach, this software helps to convert MBOX to MSG without any issues as it offers a user-friendly interface. Additionally, it allows users to preview the MBOX file emails before starting the process. After that, you can use its extraordinary features such as saving emails without attachments, specific timeframe emails, and others. Moreover, this wizard provides error-free results with accuracy in no time without data disruption. 

Detailed Steps to Convert MBOX into MSG

By following the given steps, you will achieve the desired outcome in no time. 

  1. To begin, install the MBOX Converter Wizard on your PC. 
  2. Later, tap Select Files to browse and select MBOX files from your system. Click Open Next
  3. Then, view the MBOX files data and tick to move further in the conversion. Hit Next
  4. Further, expand and choose MSG as the destination file from the drop-down list. 
  5. Now, provide the location in your system to save the resultant MSG files. 
  6. In the end, hit Convert and the MBOX file will be converted to MSG format. 

Also Read : Convert MBOX to CSV File Format

Final Thoughts

Here, this blog is useful for users with or without technical expertise to complete the task. You might know that the manual approach is lengthy and risky for users to convert MBOX to MSG. Therefore, many business owners and large organizations prefer reliable MSG Converter Software. With this utility, the process becomes easier and safer. Additionally, it preserves the folder hierarchy as it was before the process began.

Frequently Asked Questions

Q1. How Can I Convert MBOX into MSG?

Ans. For this process, a manual solution is available. To use it, follow the steps below. 
1. Save MBOX as EML using Thunderbird. 
2. Convert the EML files to MSG format with Outlook.

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