Easily Convert PST to MBOX Format in 2025 | How-to Guide

Summary: Getting exhausted trying to find the best and quickest solution to convert PST to MBOX format. If yes, then you are landing on the right page, where we will discuss the most effective and simplest methods, which are the manual method and the automated method. Along with this, at the end of this write-up, we will provide you the highly recommended MacSonik Outlook PST Converter Tool that will help you make your PST to MBOX conversion task easy. 

What are the Benefits of Converting PST File to MBOX Format?

1. It is necessary to convert PST files to MBOX files in order to migrate data from one email client to another.
2. There are many different formats for organization mailings. Due to this, a conversion is necessary for compatibility.
3. Email applications such as Thunderbird, Apple Mail, and Eudora are compatible with MBOX, which makes conversion crucial.
4. Switching between operating systems can cause PST files to become incompatible, necessitating the conversion of PST to MBOX.

Here, we explained some benefits of converting Outlook PST to MBOX format. Now, let’s move to the methods for PST conversion. 

Superlative Methods to Convert PST to MBOX Format

In this section, we will discuss the manual methods and the professional method. Firstly, we will perform the manual method, then go with the reliable process. 

Manually Export PST to MBOX without Outlook  

By default, Mozilla Thunderbird supports the MBOX format; this method is suitable and effective. Also, it works well to migrate chosen emails instead of performing a full mailbox migration. 

Requirements: This approach needs Outlook for Mac and Mozilla Thunderbird on your system before implementing. 

Steps to Export Outlook PST Files to MBOX 

Phase 1: How to Import PST Files to Outlook for Mac 

1. First, open MS Outlook for Mac. 
2. Tap File, then Import Option > Outlook for Windows Archive File (.pst), and then hit Convert. 
3. Now, choose the Outlook PST files and hit the Import option. 

Phase 2: Save Emails as EML Format 

1. Drag and drop emails from Outlook to a Finder folder in Outlook for Mac.
2. It will be stored as .eml files. 

Phase 3: Save EML Files to Thunderbird 

1. Establish Mozilla Thunderbird on your PC. 
2. Now, navigate to the Menu, navigate to the Add-ons and Themes. 
3. Next, install ImportExportTools NG and restart.
4. Press on the Tools, then hit ImportExportTools NG > Import EML files.
5. Afterward, choose .eml files and then import them into Mozilla Thunderbird. 
6. Right-hit the folder and then choose Export Folder > MBOX file Format.

This manual approach is used by multiple users, but they avoid this method because of its drawbacks. 

Shortcomings of the Manual Process to Convert PST Files to MBOX

• It requires technical knowledge. 
• This method does not have the feature to export multiple Outlook PST files to MBOX in a one attempt. 
• This process has the possibility of losing data throughout the entire process. 
• It takes too much time to complete the whole conversion procedure. 
• If one step is missing during the conversion process, the users have to begin the whole process from the beginning. 

To get rid of all these issues, you should use the professional method. 

Method 2: Convert PST to MBOX Format | Professional Technique

The MacSonik Outlook PST Converter is an extremely amazing solution to convert PST to MBOX, PDF, EML, MSG, and many more in bulk at once. It has the benefit of importing the Outlook PST files to many distinct email clients, for instance, Gmail, Yahoo Mail, Thunderbird, Office 365, and so on, with or without email attachments. Similarly, users can easily preview their PST files in depth before executing the PST conversion procedure. Equally important, it offers the feature to remove similar PST files based on different criteria throughout the process. Furthermore, this utility is highly supported on both Mac and Windows platforms. 

Step-by-Step Process to Convert PST to MBOX Format 

1. Initially, establish the MacSonik PST Converter Tool on your device.
2. Then, browse the PST from your device and hit Next.
3. Now, verify the folders from the tree structure that you need to backup.
4. After that, choose MBOX format from the drop-down menu.
5. You can also opt for distinct filters for the chosen backup or migration of PST files.
6. Press the Path To Save button to choose the saving location for the output folder.
7. Afterward, tap on the Convert button to begin the PST to MBOX conversion process.
8. Now, you can easily download the report on your conversion process.

Conclusion 

In this article, we mentioned both manual methods and a professional method to convert PST to MBOX format. Manually approaching is free, but users must have the technical expertise; otherwise, they may lose their data. However, the professional process helps in exporting PST files to MBOX without losing integrity. Along with this, it saves you time by converting multiple PST emails to MBOX format in a single attempt.