Mbox file is a default format of Apple Mail and MailMate programs. Many people are familiar with the mails format but this time we are going to talk about how you can open mbox files on windows and mac devices without having any trouble and also trying to find out different ways that can help you out in knowing how to open them in an easy way.

Mbox files can be easily browsed and mail messages in it can also be sent to anywhere by using the Mail program. But sometimes this mbox file gets corrupted and users need a solution to recover their mails in them and also in repairing the Mbox files in order to open them again. If you are looking for a solution then you have landed on the right page and we will let you know different ways to open them easily.

Different Ways to Open Mbox File:

Now we will talk about some of the methods that can help you out in opening your mailbox files without any trouble. You need not worry if you lose or damage your mailbox file and we will make you know how you can recover them in an easy way.

Method 1: Mail Program:

The first and simplest method that can help in opening mbox files is using the mail program itself. You need not go for any other third party application in order to open the mbox file as this method will let you open them in an easy way.

Step 1: Make sure that you have your mbox file on your computer and if not, then try to recover it using any recovery tool like Photorec or Recuva. After getting the Mbox file saved on your computer, the next step is opening a mail program like Apple Mail or MailMate that comes pre-installed with your Mac device.

Step 2: Now try to open the mbox file by following these steps – Open a new mail message, click on File and then it will show you the down arrow at the end of the menu bar. From there select the import messages option. Browse for your Mbox file and click on choose and your file will be imported.

Step 3: Now you can check if all of the messages and folders in the Mbox file are displayed and open on the mail program or not. If not then you need to go for some advanced method that we will tell you later on.

Method 2: Using Mailbox Extractor:

When your Mbox file gets corrupted or damaged then you can try to open them using any recovery tool like mailbox extractor that is capable of recovering your mailbox files in an easy way. This tool lets you recover all types of files without losing the data.

How does the recovery process take place?

When you get your Mbox file saved, open the mailbox extractor and click on open and browse for your Mbox file and select it. Now the tool will show you all of the messages present in that file.

You can choose which message you want to recover and at what location you need them to be recovered. Once done, click on save button and this tool will start extracting your mails to the location you have chosen.

Method 3: Using Mac Mail Utility:

If you are using a Mac device and your Mbox file is not opening on any of the mail programs then you need to go for this method that can help in recovering your data. You cannot open mbox files directly by using Mac mail utility but this tool can recover your Mbox file and let you open them on mail programs easily.

Step 1: First of all, download the trial version of this tool that can be used for previewing the message in Mbox files easily. After downloading it install this tool on your system by following the onscreen instructions given by it.

Step 2: Now whenever you get your Mbox file on the system then these tools will automatically detect it and recover all of the messages present in it.

Step 3: After recovery, the tool lets you preview each message on the mail program so that you can choose which one to save or open. Once done with this process, go to the “Recover” tab and select the destination where you want to save all of the messages.

Step 4: Once done with this process, click on the “Recover” button and it will start saving your Mbox file at the selected location. Now you can easily open these files using mail programs or any other email client without losing any data present in it.

Method 4: Using 3rd Party Tool:

When you get your Mbox file saved and it does not open on any of the mail program or mailbox extractor then you need to go for this method that uses a third party tool in order to open mbox files without losing data. The tool we are talking about is named MBOX Viewer.

Step 1: Download this tool on your system that can easily support all types of Mbox files. Next step is installing the same on your computer by following the inbuilt instructions given in it.

Step 2: Now open this tool and in the first tab, you will get two options one is to open mbox file and another option is to convert your Mbox file into PST or EML. Select the second option and browse for your file that needs to be converted.

Step 3: Once selected, this tool will now show you all of the messages present in it preview wise so select those messages which you want to recover and save it at any location on the computer. All other messages can be deleted easily.

Step 4: At last, click on the save button and this tool will start converting the Mbox file into PST or EML file so that you can easily open them in the mail program. Now you do not need to go for any other complicated method in order to recover and open your mails because these ways can easily help you to deal with this situation.

MBOX files are used to store all types of messages present in mailboxes, these files become corrupt when they get damaged or corrupted due to some reasons. When your Mbox file gets saved on disk drive then you can easily open them by converting them into PST or EML format but if it doesn’t open even after trying all of the above-given methods then it means your Mbox file is corrupt. In this situation, you need to look for alternatives like using a 3rd party tool that can easily recover and open even highly corrupted Mbox files on a computer.

Are you exploring the best approach to import an Mbox file to Mozilla Thunderbird, Mac and Windows? Do you want to learn how to open a Mbox file on Windows or Thunderbird? Do not worry because we will be discussing some of the easily implementable steps to import and open an Mbox file into Mozilla Thunderbird email. But before we step into it, you must know what an Mbox file is. 

What is a Mbox file?

Mbox file is one of the most widely used mail formats, when it comes to email applications. Several email clients using the Windows OS or the Mac OS use Mbox files to save data in various forms. For example, Opera Mail saves its data in the MBS file format and MBX files instead stores this data on Eudora Mail. The Mbox files and its variants MBS and MBS file format help users to store data in its various forms.

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What is an Mbox file extension?

The Mbox file extension, unlike the .AAE files, was developed for email mailbox files and are used to store, manage and organize messages sent and received over the email. Electronic messages are stored and combined in a file format as plain text. Mbox represents encoded information that is to be stored in a computer file. Moreover, the Mbox file extension also displays how bits are employed for digital storage. 

For example, special file formats used for special data types like PNG, which stores the bitmapped images using data compression algorithms, can be reconstructed through a Mbox file extension by copying the compressed data from the original data. Other similar formats include compressions called LOSSY, which eliminates unnecessary information called bits, therefore, decreasing the size of the file. 

Now that you know enough about the Mbox file extension, let’s move to the other part of the discussion, how to open a Mbox file on Windows, Mac and Thunderbird. 

How to open a Mbox file on Windows?

Mbox file extension becomes the topmost priority of users when concerned with data integrity. Since these files are being moved away from where they are created, in a different email client profile, wrongful importing can cause data loss and corruption. Therefore, users need to find the right ways to open Mbox files on windows. The following steps make it easy to open an Mbox file on Windows. 

  1. Download the Mbox software
  2.  Install and open the Mbox software
  3. Choose Email Client and then click on Next 
  4.  Select Add Files to add one file and then click on Add Folder 
  5. Once done, click on Finish
  6. After scanning of the selected files, preview the email content 
  7.  Just click on any individual item and preview it
  8. In case you want to save the mail list in the HTML format, select the E icon next to the Folder List. Then choose the destination folder and click on OK. 
  9. View the HTML file with all the details on the Mbox email. 

How to open a Mbox file on Thunderbird

Mozilla Thunderbird is a desktop-based multi-platform email application, similar to the likes of MS Outlook. Using Thunderbird, you can configure multiple email accounts, manage your emails easily along with calendars, contacts and tasks. Using the Mbox file, you can store its mailbox data into it. As this is the most widely used email format by clients, therefore, you need to import an Mbox file in Thunderbird. 

There are several users who want to learn how to open a Mbox file on Windows or Thunderbird. It is a common file type used by a number of email clients to store email and messages in a Mbox file format. Therefore, a user who needs to open Mbox file into Thunderbird email client can follow these steps:

  1. Download the free, open-source program, Mozilla Thunderbird
  2. Open it once it is installed, launch it.
  3.  Open the software and then right click on Tools menu
  4. Now click on the Adds-on and then select Get Add-Ons.
  5. Now search for the option ImportExportTools Thunderbird add-on and install it. 
  6. Within this Thunderbird add-on, navigate the local folders tab and click on the Tools menu.
  7. Once you find the file, select it. 
  8. Finally, after importing the file, you will now find the folders and emails in your Thunderbird folder. 

How to open a Mbox file on Mac

Now that you know how to open a Mbox file on Windows and Thunderbird, let’s explore how to open the file on Mac. 

  1. To open the Mbox file into the Mail folder of your Mac, you need to choose the Import Mailboxes option. 
  2. You will see a popup to check the Files in Mbox format checkbox and then click on Continue.
  3. From the dialog box that appears, search for the file you’re looking for. 
  4. Now, go back to the email application, select any mailbox from the many folders and mailboxes available. 
  5. Once you’re done with it, click on Import and choose from the available collection of Mbox files. With these steps, you can easily open the Mbox file on Mac. 


Emails are highly significant forms of communication, which is why you must regularly back them to prevent you from recovering critical data. However, not knowing the correct procedure, they fail to upload the Mbox file and instead lead to data loss or leak. 

However, you can use the above mentioned steps to import, open, and open the Mbox files on Windows, Mozilla Thunderbird and Mac or convert them into specific formats. These steps are compatible with the OS you use, Thunderbird, Mac or Windows. Make sure to include the right steps otherwise chances of file corruption will also bubble up. 

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