Convert MBOX Emails Into PST For Free [With/Without MBOX to PST Converter]

Aldrich Calvin | September 11th, 2019 | Updates

Want to convert MBOX items into PST format? No matter if you have access to Outlook or not, find free MBOX file to PST conversion methods here.

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MBOX files are the topmost versatile email repository. The market is familiar to a wide number of email storage files that have ever been increasing. However, MBOX is slightly different from most of them. The file is a collection of messages in plain text format. Each message contained within the MBOX file is stringed to the other at its end. Every MBOX file format represents an email folder, i.e. a collection of messages from the origin email program.

These files are generated by not one, but a variety of open source desktop mail applications. This includes; Thunderbird, Entourage, Spicebird, and many other such 3rd party applications programmed for desktop-based emailing purposes. This segment explains the requirement, advantage, and uses of the tool like MBOX file converter for translating MBOX.

Scenarios of MBOX File Conversion

There are a couple of scenarios that users find themselves in when trying to convert MBOX file items into PST. These scenarios are related to the availability of Microsoft Outlook for the conversion process. While for some users, Outlook and other email clients are present on the system, while others require a solution that does not need email client installation. In the next section, we will discuss the steps to perform free MBOX file to PST conversion either with Outlook or without it.

I. With Outlook
II. Without Outlook installation

Users may try SysTools MBOX To PST Converter and convert multiple MBOX files into PST, EML, MSG, NSF & HTML. The trial version freely converts 25 items per folder into PST format.

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Ist Case: Convert MBOX Items Into PST With Outlook

If Microsoft Outlook installation and configuration is possible, then users can easily set up a new account and use it for conversion. Another email client that supports MBOX (such as Thunderbird, Eudora, Apple Mail) is necessary to convert MBOX emails to PST successfully.

Free Manual for MBOX to PST File Conversion

1. Start Mozilla Thunderbird and access the MBOX file in it. Use ImportExportTools add-on for this process.

Start Mozilla Thunderbird

2. Configure a new Gmail account in Thunderbird. Enter the name, email address and password at the designated boxes and enable IMAP option.

configure email account

Note: Make sure to enable the IMAP authentication option in Gmail settings first.

3. Right-click on the Gmail mailbox and create a new folder with desired name.

create new folder

4. Open the MBOX mailbox and select all the emails to move into PST file.

select mbox for pst conversion

5. Either drag and drop messages into the new folder or move them using the free manual method.

Start Mozilla Thunderbird

6. Wait for Thunderbird to synchronize the data. Now, run Microsoft Outlook and configure the same Gmail account in it.

run outlook

7. Open the New folder containing all the MBOX emails to convert to PST file. Move these files into any location within Outlook.

8. Now, go to File and select Open & ExportImport/Export.

import/export mbox file to pst

9. Select Export to a file and hit Next.

export to file

10. Choose Outlook data file option and hit Next.

Outlook data file (pst)

11. Select the new folder to convert to PST file and hit Next.

select new folder

12. Input the names of the destination and the PST file. Choose other options as per requirement and hit Finish.

rename pst file

13. Choose the password for the data file or skip this step. Open the destination location to get the PST files.

set password for pst file

Note: For this process, both Mozilla Thunderbird and MS Outlook must be installed and configured with Gmail account. The process will be time-consuming and is only recommended for those users who can afford losing some email attributes, formatting and other properties.

Assured Solution to Convert MBOX Files

To save time and effort and to prevent any sort of data loss, users are recommended to use SysTools MBOX to PST Converter. It converts MBOX file into PST format without Outlook. This software supports MBOX files of Thunderbird, Apple Mail, Entourage, Eudora, The Bat and more than 15 email clients. It also supports batch and selective conversion with ample of other advanced features.

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Steps to Convert MBOX Mailbox to PST are:

Step 1: Run the MBOX file to PST Converter on the computer and click on Add File to select all MBOX files for conversion to PST.

run mbox to pst converter

Step 2: Now, the software will scan all the added MBOX files and display them in 8 different preview tabs for free. Simply, click on any email and preview its content.

preview mbox emails

Step 3: For selective conversion, mark the email messages using checkbox. Else, click Export button to open the Export window.

selective conversion

Step 4: Set the export format to PST and apply other settings as per choice. Click on Export to convert MBOX file to PST easily.

export mbox files

Note: Presence of Outlook is not mandatory for this method. Users can apply the manual method to convert MBOX to PST for free. But, if the results are not accurate and satisfying, users have the choice to download and run MBOX to PST file converter for assured and loss-free conversion.

IInd Case: MBOX File to PST Conversion Without Outlook

If users cannot access the Microsoft Outlook email client then, no manual method can import MBOX to Outlook. The reason being no such method exists at all. A mediator is necessary for any sort of file conversion, be it in the form of email clients, external applications, or third-party solutions.

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So, in order to export MBOX files into designated PST files, a user must opt for reliable software such as SysTools MBOX to PST converter. It does not require MS Outlook or any other email client for conversion. This software has a demo version to convert 25 items per folder for free into the preferred format. Moreover, it can automatically fetch mailbox items from 20 email clients, thus cutting off the average time required for scanning and overall conversion. With this software, users can enjoy PST files without losing formatting, email structure or attributes.

  1. Launch MBOX file to PST Converter.
  2. start the free software

  3. Click on “Add File” menu option to open the MBOX selection window.
  4. add file button

  5. Select MBOX files from the list and click on “Next” button.
  6. select mbox files

  7. Here, choose “Use folder mode” to select the folder containing all MBOX files for conversion to PST.
  8. folder mode

  9. Wait for the software to scan the mailbox items. Then, click on any email to preview its content in different preview modes.
  10. scan mailbox emails

  11. For Selective Email Conversion, select all the emails using the checkbox and right-click to choose “Export” option. Alternatively, click on the Export menu button without selecting any checkbox.
  12. selective MBOX conversion

  13. Choose between “Export All Folders” and “Export Selected Folders” as per preference. Click on “PST” format option from the list.
  14. select PST

  15. Click “Split PST” and set the size to MB or GB. It will break the resultant PST files into multiple smaller PST. Users can also choose to skip this option.
  16. Now, set the location to save the converted MBOX files into PST using the “Change” button.
  17. choose saving location

  18. Click on “Export” to start the file conversion process. In the end, the software displays a message confirming the process completion.
  19. start mbox to pst file conversion

  20. Choose to view the report or directly open the converted file location. And find the new PST file at the location.
  21. view new pst files

Note: The MBOX to PST converter tool also provides option to merge all the MBOX files into a single PST file. Use “Folder mode” for this task. Else, the software converts MBOX files into corresponding PST files.

Need of Conversion Despite Open Accessibility

MBOX files are open to being accessed on or with any application that supports reading the file. However, there are cases where the accessibility might get troubled a bit considering the condition. Some of such circumstances and requirements have been discussed below:

  • Varied Application Support: Accessibility on a variety of applications is not just a benefit but also a drawback from the security point of view. The files can be accessed by any or all MBOX supportive applications. Higher the number of applications associated with the file, complicated becomes the procedure of accessing it. Some applications import MBOX files, while others detect it from the default store folder only.
  • Access Without Application: Being a simple text-based file makes MBOX readable using a text reader or editor. Notepad, for example, can read an MBOX file format directly without any trouble. However, the challenge is to read the corresponding attachments. Notepad cannot read or display attachments of any type whether text, document, or image-based. Therefore, not complete accessibility can be gained of the file. At this stage, the user needs MBOX file converter to open a file without the need of an external server environment.

Outlook Data File Over Mailbox

Outlook Data files are Personal Storage Table files that consist of the entire account data of a particular user profile. The file is a proprietary of the Microsoft client thus, is not accessible by any other email program or importable on any too.

The file not only consists of email storage but also is a repository of other personal information managed by the user. The data file consists of data that includes; email folders, contact storage, calendar entries, journals, tasks, and more generated or exchanged by the user.

Therefore, for a collective representation of the MBOX file format contents conversion to PST file can be performed. Due to the lack of provision for MBOX to PST conversion, the data transfer can only take place using an external program.

Conducting The Conversion

As per the observation, the lack of procedures to make a direct and bulk data conversion from MBOX to PST, the accessibility of a third party program to be made. Therefore, MBOX File Converter would be highly recommended as a suitable solution for performing the conversion of mailbox data to Outlook Data File format. The program is built to support the MBOX file format of varied platforms and convert them into more than just Outlook data file format.


Can I convert MBOX database to PST for free?

Yes, you can easily convert emails from MBOX file into PST format freely. You can use the free manual method for that.

Is it possible to export MBOX files into PST without Outlook?

Yes, MBOX file to PST conversion can be achieved without Outlook. But, you will have to use SysTools MBOX to PST converter for that.

Can I move MBOX file of Thunderbird into Outlook for free?

Yes, the given solutions are eligible for MBOX files of any origin, including Thunderbird, Mac Mail, Eudora, Gmail, the Bat!, etc.