Free methods to convert MBOX to PST file

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The blog explained the free methods to convert MBOX to PST file in few simple steps. In this blog, we explained manual as well as automated method that helps users to convert MBOX file to PST file format without losing a little bit of data.

MBOX is a file format that stores a collection of email messages from a folder into a single database file. MBOX file is created by many email clients such as Apple Mail, Entourage, Mozilla Thunderbird, Eudora, etc. But sometimes, users want to export or convert data of MBOX files to any other email client file like MS Outlook PST other than email client accordingly.

On the other hand, PST is the most organised file format that stores all the Outlook mailbox data like emails, calendars, contacts, tasks, notes, outbox items, etc. Everyone knows the various benefits of Outlook as it provides various services which are beneficial for the business environment.

Why do users want to convert MBOX to PST file?

  • Users can store only email messages in MBOX file format. On the other hand, Outlook PST stores all the emails, contacts, calendars, journals, tasks, notes, etc. for each mailbox.
  • MBOX file only stores emails and attachments in a sequential manner whereas PST file structure in Outlook is always in a systematic manner such as Inbox, Sent Items, Contacts, etc.
  • PST file is more secure than MBOX file format and offers password protection for security purposes.
  • Also in PST files, internet connectivity is not required to access previously opened emails or data.

Manual Method to convert MBOX to PST file

This method involves multiple stages to finally reach MBOX to PST conversion.

  • First Stage – Import MBOX to Apple Mail
  1. Launch Apple Mail application and click file>> Import Mailboxes.
  1. Now, select the file in MBOX format option and click on Continue to proceed further.
  1. In the next window, browse MBOX file location for conversion and select the Choose to select items to import option, and then click Continue.
  1. The import process will start. When it’s done, click on Done.
  1. Now MBOX file is imported into Apple Mail account.
  • Second Stage – Creating Mailbox in Eudora Email Client
  1. First rename and add extension .mbx to the imported MBOX file, for example – xyz.mbx.
  1. Go to this location C: Documents and Settings<user>Application Data\Qualcomm\Eudora and paste this imported xyz.mbx file.
  1. Now, launch your Eudora application and select the xyz.mbx file to confirm its existence as a mailbox.
  • Third Stage – Import MBOX file from Eudora to Outlook Express
  1. Open installed Outlook Express and then click on File and select Import and then click on the Message option. 
  1. Select Eudora option and click on Next. 
  1. Browse to the mbox file, xyz.mbx, and click on OK. Proceed further by clicking on Next again on Next and finally click on Finish option.
  1. MBOX file will be saved in the local folder of Outlook Express.
  • Last Stage – Importing MBOX file from Outlook Express to Outlook
  1. Start Outlook application and go to File > Import > Import and Export.
  1. In the Import and Export Wizard that opens, select Import Internet mail and addresses option and click Next.
  1. Now select Outlook Express 4.x, 5.x, 6.x or Window Mail, select other import options (Import Mail and Import Address Book) and click Next.
  1. Once the import is completed, the conversion process is over and finally, MBOX is converted to PST.

Limitations of Manual Method 

  • Lengthy and confusing process
  • High chances of data or properties loss 
  • Only technical users can do that process
  • Require too many email client application installation 
  • Do not support MBOX file conversion

Automated Method to convert MBOX to PST file

I personally recommend using the automated method to convert MBOX to PST file as there are no Drawbacks. SysInspire MBOX Converter Software is an automated tool that helps to convert MBOX files to PST in few steps. Users can easily and safely import all data from MBOX files to PST without losing internal data. Also, there is no size restriction for conversion.

  • Comes with a simple user-friendly interface which helps technical as well as non-technical users to operate the software without any effort.
  • It can also export selective items from MBOX file to PST and other different formats like EML, EMLX, NSF, MSG, HTML, Yahoo Mail, Gmail, etc.
  • Before conversion, software shows live preview of MBOX files.
  • Users can also import emails of specific dates range from MBOX file to PST.
  • Supports each email client of MBOX file for conversion and users can easily run the software on Window OS versions up to 11. 
  • Presents technical support 24*7 for solving user’s queries regarding the software

Free Demo Version 

Check out the free demo version of this tool where users can see the performance of the software and how it works. Moreover, users can import 25 emails per MBOX file into PST without paying any amount.

Working Process of SysInspire MBOX Converter Software

1:- Install and Launch SysInspire MBOX Converter Software, and click on “Add file/folder” button.

2:- Then select MBOX file/folder from provided options:-

  • Select MBOX file
  • Select MBOX folder
  • Auto-load thunderbird profile

3:- Then shows a live preview of MBOX emails and select required mail folders, then click on “Convert MBOX” button from the menu.

4:- Select PST file format from conversion formats to convert MBOX file, and choose a desired location to save resultant files.

5:- Then click on the “Convert” Button and start conversion process of MBOX to PST file.

After the conversion process is complete, import PST files to Outlook and access your MBOX file data in Outlook.


The problem of converting MBOX to PST file is clear to many users after reading this blog. In the blog, we recommend two methods, manual methods are available to convert MBOX to PST but it is indirect, complicated, and lengthy process. Hence, converting MBOX files to PST through an effective automated tool would be a better, time-saving, and more efficient idea.

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