How do I Convert EML to MBOX File on Mac

Summary: In this blog, We will provide the best techniques to convert the EML files to MBOX and understand the needs of the conversation from EML to MBOX. We’ll discuss the best ways to convert EML to MBOX with manual or professional methods by using EML File Converter tool. Now, let’s move to a brief introduction to the EML & MBOX format.


What is the Meaning of EML and MBOX?

EML: EML is a file extension for saving email messages in a specific format. It stands for electronic mail or email. When you save an email as an EML file, it keeps all the information and structure of the original message. Microsoft Outlook Express and other email programs use this standard format to store emails.

MBOX: An MBOX file is like a container for messages. It holds all the important information about the messages, like the text and any files attached to them. The metadata file is like a summary of the messages, which includes important details about each message as recorded by Google.

Many people who used to use Windows Live Mail, an older email program, are now switching to other options. One email client that has gained a lot of popularity is Thunderbird. Due to advancements in technology, Thunderbird has become a preferred choice for many users. As a result, people are transitioning from Windows Live Mail to Thunderbird. To make this transition smooth, users need to convert their EML data files into the MBOX file format.

Top 3 Techniques to Convert EML to MBOX

There are various solutions to export EML to MBOX file format.

Method 1: Convert EML to MBOX File Using Thunderbird

In this method, we’ll drag & drop EML files to Thunderbird.

  1. Firstly, Open Thunderbird & locate the Inbox folder.
  2. Then, Right-click on the Inbox folder and choose the option to create a new folder.
  3. Give the new folder Name and click the button to create the folder.
  4. Now, minimize Thunderbird and navigate to the folder where your EML files are saved.
  5. Press and hold the CTRL key on your keyboard, then press the letter A. It will select all the EML files in the folder.
  6. While pressing the CTRL key, click and drag the selected emails to the new folder you created in Thunderbird.
  7. Importing the EML items into Thunderbird may take some time, so please be patient.
  8. After the import process is complete, close Thunderbird.
  9. Open Thunderbird again, and you should be able to see the EML files in the new folder you created.

Note: Using the drag-and-drop method to convert multiple EML files has become less effective. The process slows down and can even cause your system to freeze. There is a significant risk of losing data when using this method.

Method 2: How to Convert EML to MBOX File Using the Import/Export Tool

We’ll export EML to MBOX using the Import/Export Tool in this method.

  1. Launch Mozilla Thunderbird on your PC.
  2. Then, go to the Tools menu, select Add-ins, and install the Add-ins.
  3. Restart Thunderbird, Right-click on the Inbox folder, and choose the option to create a new folder.
  4. Now, open the new folder and click on the menu button.
  5. From the Tools menu and pick Add-ins.
  6. Choose Import messages, select the EML files you want to open in Thunderbird, and click Open.
  7. Once the process is complete, open the EML files in the desired folder in Thunderbird.

Note: The second way of uploading EML files to Thunderbird takes a lot of time. It’s difficult for non-technical users to understand the manual steps because they require some technical knowledge. These manual solutions are free, but they are only partially safe. There’s no guarantee that the conversion will be 100% secure using these methods.

Method 3: Direct Method to Convert EML to MBOX File on Mac

The EML File Converter is secure & risk-free software. This tool lets you easily convert your EML File items to MBOX without losing any data. It is the best software for EML to MBOX conversion. This software also converts EML to PST files. It has a simple GUI; therefore, everyone can use it without technical experience. This application is designed with multiple features/functions.

Step-by-Step Guide to Converting EML to MBOX

  1. Firstly, Download and Install EML File Converter Software on your PC.
  2. Then, select the Single File or Multiple File/Folder option and click Next.
  3. Now, choose the EML File from the Browse button.
  4. After that, preview EML file items with attachments.
  5. Next, select the MBOX option from the drop-down list.
  6. After all, choose the filters/features as per your requirements.
  7. At last, click on the Convert button.

Advantages of EML File Converter

  • This software helps you convert EML to MBOX Mac and other formats.
  • You can also migrate your converted files to multiple email clients like MS Outlook, Gmail, Yahoo, Thunderbird, Zimbra, and more.
  • It allows you to convert multiple EML files simultaneously, saving time and effort. You can directly export the converted data to your preferred email client application.
  • This application offers multiple features like a date filter, deleting duplicate items, and more.
  • Additionally, you can preview the contents of your mailbox, including emails, calendar events, contacts, tasks, and more. It helps you ensure that the conversion is accurate and meets your requirements.

Note: You can use the free version of the software, which allows you to export the first 25 emails. You can also convert EMl to MSG, HTML, PDF, etc. It will enable you to evaluate its performance before making a purchase.


The above article discussed the three best techniques to convert an EML file to MBOX manually or professionally. Both approaches help convert EML to MBOX, but the manual methods could be more challenging for novice users. It is technical as well as it has limitations. On the other hand, the professional method is an easy and non-technical method to convert an EML file to MBOX. It has a simple user interface & allows you to use multiple features/functions. The professional techniques can convert multiple and any number of size files at a time. Now, choosing the right solution to export them is in your hand.

Frequently Asked Questions

Q. Can we preview EML files by using this tool?

Ans- You can preview EML files with the assistance of the EML File  Converter software. This wonderful application provides you with a great option to preview EML files before they are converted. This feature allows you to view the contents of the EML files, including any attachments that may be present, before proceeding with the conversion process. Additionally, the EML File Converter software offers various features and functions that enable you to edit your items as per your requirements. Rest assured, this software will help you complete your tasks without any difficulty.

Q. How do I convert multiple EML files to MBOX? 

Ans- The EML File  Converter software offers a convenient option to export multiple EML files simultaneously. You can choose between the Single File or Multiple File/Folder option and process any number of files of varying sizes. This feature helps you save time and complete your tasks more efficiently. 

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About The Author:

As a Technical expert, I love to write blogs on email migration, data recovery, and cloud migration. In my free time, I like to research new things related to technology.

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