How to Convert MBOX to PST Format in Bulk? Top Techniques

Approved By Rollins Duke

Published On April 29th, 2026

Reading Time 6 Minutes Reading

Summary: In this blog, we will discuss everything you need to know about how to convert MBOX to PST format. There can be several reasons that a user needs to perform this conversion, such as email migration or data backup or to improve compatibility with Outlook. We will talk about all the aspects related to the MBOX to PST conversion process. So, to understand the complete conversion in a simple and clear way, continue reading this blog till the end.

Why Choose PST Over MBOX?

MBOX File: MBOX is a common mailbox file format that is used by multiple email clients such as Thunderbird, Eudora, Apple Mail etc. It is a single text-based file that stores all your emails that makes it easy to access across different platforms. But, it lacks advanced security features and is not ideal for managing large or complex mailboxes.

PST File: PST, stands for Personal Storage Table is a Microsoft Outlook data file that stores all the mailbox data including emails, contacts, tasks, attachments etc. PST is widely used in professional environments as it supports large data size files, used by multiple email clients such as Thunderbird, Eudora, Apple Mail etc. aspects.

Users can convert MBOX to PST format with manual as well as professional methods safely. We will discuss both the methods but first, let us see why do even users need to perform MBOX to PST conversion, what are the reasons behind it.

What are the Reasons to Convert MBOX to PST Format?

Switching to MS Outlook: Outlook does not support MBOX, so conversion is required to access emails.
Better Email Management: PST format offers better organization of data with folders, rules and filters.
Business Uses: Businesses rely Outlook to manage their data, making PST files are important for them.
Improved Data Security: PST files offers security of your email data to store files safely.
Handling Large Mailboxes: PST can manage large email data more efficiently than MBOX.
Backup & Archiving Needs: PST is commonly used for a long-term email backup and storage needs.

How to Export MBOX to PST Manually?

Converting MBOX files to PST format directly is not an easy task, so you have to take the help of a third-party application that supports both MBOX and PST formats. So, we will use the Thunderbird and Gmail accounts for the whole process.

Phase 1: Import MBOX into Thunderbird

First, install Mozilla Thunderbird.
Now, install add-on: ImportExportTools NG.
After that, open Thunderbird.
Right-click on Local Folders >> ImportExportTools NG.
Now, click on Import MBOX files option.
Lastly select your MBOX file to upload.

Now, your MBOX emails are visible in your Thunderbird email client.

Phase 2: Convert MBOX Emails to EML Format

Select all the important folder in Thunderbird.
Right click on ImportExport NG.
After that, click on Export all messages in the folder >> EML format.
Choose a destination folder.

This way you cab convert MBOX files into multiple EML format.

Phase 3: Import EML Files into Outlook

First open Microsoft Outlook on desktop.
Now, create a new folder in Outlook.
After this, open the folder where EML files are saved.
Select all EML files >> Drag & Drop into Outlook.

Emails will now appear inside Outlook.

Phase 4: Export Emails to PST Format

Go to File >> Open & Export >> Import/Export.
Select Outlook Data File (.pst).
Now, select the folder where your emails are stored.
Now, choose the destination >> Finish.

Now, your PST file is ready.

Setbacks of Manual Methods

This method can be very time consuming due to multiple steps across Thunderbird, Gmail, and Outlook.
Sometimes, attachments may get lost or corrupted while transferring data from one to another email client.
There is no guarantee that formatting, metadata, or folder structure will remain same or intact.
Syncing may create duplicates through the data. This may create disruption while managing it.

Suggested and Reliable MBOX to PST Conversion Tool

If you are using the MailsWare MBOX Converter Tool, then you don’t need to go through lengthy processes. This brand provides users with reliable products. In this software, you will see multiple file migration features (bulk conversion).

It also allows you to select a destination path, which is an excellent feature. Users can easily save data to their preferred location. You can also convert MBOX to PDF, TXT, CSV, and more with the 35+ saving options. So, by using this professional method, you can quickly convert MBOX to PST file format.

Download Now Buy Now

How to Export MBOX to PST Format in Bulk? All Steps

Download and run the software to convert MBOX to PST file.
Choose the “Select Files” or “Select Folders” options to add files/folders.
After that, choose the required folder.
Now, select the “PST” file format from the saving options.
Enable filters to convert MBOX to PST file selectively as per choice.
Select the location from the machine to download your output data file.
Then, click on the “Next” button to convert MBOX to PST.

Advanced Capabilities of this Best Solution

Offers faster and easier steps to work with even large amount of MBOX files.
It is capable of completing MBOX to PST conversion in one go with safety.
Ensures to retain the originality of the entire data during the conversion.
Offers dual options to upload data in bulk to smoothly complete the process.
Manages all the corrupt data that might occur in manual filing systems.
Preserves the entire data throughout the conversion and keeps it same every time.

Conclusion

After reading this article, you are completely informed about the manual or automated method to convert MBOX to PST format. Users need to understand that the manual method is a very lengthy and time-consuming process. On the other hand, if you go for the automated solution, you can quickly convert MBOX to PST file format. Also, non-technical users easily use this software because of the user interface.