How to Convert MBOX to PST Manually?

How to Convert MBOX to PST Manually?

Here in this post, we have shared the manual process to Convert MBOX to PST for free. We have also mentioned an advanced MBOX to PST converter software that can convert MBOX files to PST in a few clicks.

As you know MBOX file format is used by various email clients, such as Apple Mail, Thunderbird, SeaMonkey, etc. Still, Microsoft Outlook doesn’t support the MBOX file format. Therefore, if you’re planning to switch/migrate from an MBOX-based email client to Outlook, you need to convert MBOX files to PST format, supported by Outlook.

How to Convert MBOX to PST Manually?

If you have a technical understanding of email file formats and clients, you can convert MBOX to PST manually. Follow the steps to convert MBOX to PST manually:

Step 1: Import MBOX File in Mozilla Thunderbird

(i). Install Mozilla Thunderbird on your system, open it, and then set it up with a dummy email account.

(ii). Open the Tools menu and select Add-ons.

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(iii). In the Add-ons Manager tab, click Extensions, type importexport in the search box, and press ENTER.

(iv). In the search results, locate ImportExportTools NG and click the + Add to Thunderbird button right next to it.

(v). Once the add-on is installed in Thunderbird, open the mailbox tab. After that Right-click Local Folders and in the menu that opens, select ImportExportTools NG > Import Mbox file.

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(vi). Select the appropriate option in the window that opens. Then import the MBOX file from your system.

Step 2: Export MBOX Emails to EML Format

(i). Once the MBOX file is imported, open it in Thunderbird and select the emails you want to convert from MBOX to PST manually.

(ii). Right-click on the selected emails and select Save As….

(iii). Provide a location to save the emails and then click Select Folder. The chosen emails will be stored at the provided location in EML format.

Step 3: Import EML Files into Outlook

(i). Launch Outlook and create a new folder in your mailbox.

(ii). Drag and drop the EML files in this folder.

Step 4: Export Emails to PST

At this position, you already have MBOX emails in Outlook and you can access them directly. Yet, if you want to convert MBOX to PST, you can follow these steps:

(i). In Outlook, go to the File menu. Then click Open & Export > Import/Export.

(ii). In the Import and Export Wizard, select Export to a file and click Next.

(iii). Select Outlook Data File (.pst) and click Next.

(iv). Select the folder where the EML files are saved and click Next.

(v). Specify the location where you want to save the exported PST file and click Finish.

By grasping the earlier manual process, you can successfully convert MBOX to PST for free. Still, it has a few limitations:

• The manual process is time-consuming. And if you ought to convert multiple MBOX files that have several folders, manually exporting them to EML format is tedious and cumbersome.

• A large risk of data damage if you are converting large MBOX files that have thousands of emails.

• It is impossible to convert multiple MBOX files to PST simultaneously with the manual method.

To surmount these restrictions, use a third-party MBOX to PST converter software.

How to Convert MBOX to PST with Software?

You can use specialized software, such as SysinfoTools MBOX Converter to convert MBOX to PST in a few simple steps. This smart MBOX to PST converter software enables you to convert multiple, large-sized MBOX files to PST directly and easily.


Transforming MBOX mailboxes to PST manually is not a simple task. Y’all have to take care that there is no data loss or discrepancy during the conversion. But if the conversion has to be carried out on a large scale (an organization migrating to Outlook, for instance), at that time the manual approach is difficult to apply. Therefore for faster MBOX to PST conversion, reliable third-party software is the best option.

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