How to Convert PST to MBOX using Best Solutions

Summary:- MS Outlook is one of the most used email clients worldwide. It’s popular and used by every organization, business, also individual. However, if you are a regular user of MS Outlook, you know the problems it can create. Outlook users can save their data in only Outlook Data File (.pst). Indeed PST files are one of the best file formats. But PST files only work for Outlook and do not support Mac OS and Linux. So to access PST file data other than Outlook users, convert PST to MBOX. MBOX supports many email clients, unlike PST files which include Thunderbird, Apple Mail, Power Mail, Entourage, Eudora, Postbox, Mulberry, etc.
Although you want to convert the Outlook PST file to MBOX for any reason, you are in the right place. Here, you will get manual steps along with a professional solution named PST to MOX Converter tool. On the other hand, users migrate from Outlook to Thunderbird because Thunderbird is more easily installable on a PC than MS Outlook. Let us discuss some reasons that users consider while converting PST to MBOX.


Why is There a Need to Convert Outlook PST Files into MBOX?

There are various reasons to move Outlook PST files to MBOX. Let’s explore the motive behind it.

  1. PST files only support MS Outlook and no other email clients like Thunderbird, Apple Mail, Eudora, Postbox, etc. As a result, you can’t import data into PST format other than MS Exchange Server, Office 365, and Outlook for Mac. Hence, convert PST files to MBOX to import them into other email clients.
  2. You can’t open PST files on Mac OS and Linux as it only supports Windows Operating System. On the other hand, MBOX files can work on Windows, Mac OS, and even Linux (including distros).
  3. To operate Outlook in the long run and explore all its features you need to buy a license. Users shift from Outlook to Thunderbird and other free email clients. In this case, export the Outlook PST file to Thunderbird by converting PST to MBOX file format.

These are the reasons that you can consider while converting PST files to MBOX. Now, we are providing you several methods by which you can import PST files to Thunderbird by converting PST to MBOX.

Method 1: Method to Convert PST to MBOX Manually

If you are looking for an easy and reliable process to move Outlook PST files into MBOX, here they are. There are two approaches manually and professionally that can help you export Outlook PST files to Thunderbird and other file formats.

Follow the Given Steps to Convert PST Files to MBOX

  1. Go to your Microsoft Outlook account.
  2. Open File>>Open & Export and hit the Import/Export tab.
  3. Select Export to a File and click the Next button.
  4. Choose Outlook Data File (.pst) and press Next.
  5. Pick the folders you want to convert, then hit the Next button.
  6. Select a saving location for your output file.
  7. Now, Open your Mac system and go to Outlook.
  8. Click on File >> Import >> Outlook Data File (.pst) and press Next.
  9. Select Outlook for Windows Data File (.pst) and proceed.
  10. Now choose the location of the earlier saved PST file and click the Import button.
  11. This wizard stores all the migrated PST files in the Outlook folder.
  12. Finally, drag your converted MBOX to your desktop.

By following the above steps you can convert PST to MBOX. However, this process is quite hectic and not suitable for non-technical people. So we suggest you go through the professional method described below.

Method 2: Automated Method to Convert PST to MBOX

PST to MBOX Converter Tool is the best utility to export Outlook PST files to Thunderbird. It is the most reliable and secure software that maintains folder hierarchy and data integrity. This software converts PST to file formats like PDF, TXT, MSG, HTML, EML, MBOX, EMLX, etc. This is one of the best Outlook PST Converter tools available in the market with multiple advanced features. It can directly export PST files to Thunderbird, Hotmail, Opera Mail, Gmail, Yahoo, IMAP, and other email clients.

Key Features

  1. Users can convert PST files to MBOX in Single and Multiple modes.
  2. You can also import PST files into the Live Exchange Server & Office 365 Account.
  3. It provides the facility to sort emails by Date-Range Filter.
  4. This software can Split a large file into small files while converting PST to MBOX as per your requirements.
  5. The free version of the tool can export 50 emails without any cost.
  6. Users can convert batches of PST files to MBOX at once, which saves time and effort.

Now, let’s move ahead to learn how to convert PST to MBOX in a professional manner.

Follow the Steps to Convert Outlook PST file to MBOX

  1. Install and run the PST to MBOX Converter.
  2. Choose the Single or Multiple file options to export.
  3. Tap on the Browse button to select the PST folder.
  4. Choose the file that you want to convert and press the Open button.
  5. In this wizard, pick the PST file from the tree structure folder to export into MBOX.
  6. Take the preview of the email and attachments from the tree structure and click the Next Button.
  7. Select the MBOX format from the drop-down menu.
  8. Now, choose the built-in features like Saving in the same folder, removing duplicate emails, and Maintaining folder hierarchy.
  9. Click the Migrate or backup emails without attachments files option to convert only emails.
  10. Filter your data through the Mail and Task filter for selective conversion and tasks by providing dates.
  11. Assign a name in the Custom folder name to your output file.
  12. Hit the Path to Save button to set the saving destination of your file.
  13. Now, click the Convert button to export PST to MBOX file format.
  14. Finally, the process is complete and your PST files are converted into MBOX file format. Select the Download Report to view the process in CSV format.

These are all the steps you need to follow to migrate from Outlook to Thunderbird by converting PST files to MBOX. It is a reliable and effective tool that provides the utmost safety for your data.


In this context, we have discussed the easy and reliable ways to convert PST to MBOX file format. You can export Outlook PST files to Thunderbird manually and professionally. Although it’s up to you, if you are going for the manual approach then you have to face its disadvantages. So we are suggesting you prefer the automated solution which can give you a hassle-free experience of the whole process. You can also try its demo version to convert PST to MBOX.

Frequently Asked Questions

Q. How to convert PST files to MBOX format?

Ans- With the help of the PST file Converter tool, you can easily export the PST files to MBOX format. It’s an easy and reliable tool that is 100% secure and protected from bugs and viruses. Users can migrate single as well as multiple files at once. Try its free version to explore more.

Q. How do I add an Outlook PST file to Thunderbird?

Ans- An easy method to add an Outlook PST file to Thunderbird:-
1. Open Outlook >> File >> Open & Export >> Import/Export.
2. Select Export to file >> Outlook Data File (.pst) >> choose the file and save it on the destination location.
3. Now, open Mac Outlook, Click File >> Import >> Outlook Data File (.pst).
4. Select Outlook for Windows Data File (.pst), save it in MBOX format, and drag & drop it to your desktop.

5/5 - (6 votes)

About The Author:

Roshan Fatima is a Technical Writer at Data Conversion Tools. She is a Tech enthusiast, holding over 2 years of experience in Data Recovery Solutions. She loves researching and providing solutions to technical problems and tips and tricks to solve Windows technical issues. In her free time, she likes to read books and novels. Enjoys traveling and exploring new things.

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