MBOX file is a very common file format used by different emailing applications to store its data. Mainly they are used by Thunderbird in Windows and Apple Mail in Mac. Thus, if you want to migrate from Outlook to Apple Mail or other MBOX supporting applications then it is necessary to convert Microsoft Outlook data file into MBOX file format. You can do this with the help of OST to MBOX converter that also provides the option to convert OST into PST file format.

  • Convert large OST files into MBOX file format
  • Complete data migration of OST file into MBOX file
  • Keeps the folder structure of OST file intact
  • Convert OST to MBOX as well as PST, EML, EMLX and MSG
  • Open converted MBOX file in Thunderbird, Apple Mail etc.
  • Read orphan or inaccessible OST file and convert it to MBOX


Current Version: Version 2.2

Last Updated: 30th June 2023

100% Safe and Secure

All Features of OST to MBOX Converter

Convert OST File into MBOX

By using Magus OST to MBOX Converter, users can conveniently access their mailbox data stored in OST files using MBOX-supported email clients. This conversion process ensures that important emails, attachments, contacts, and other mailbox items are preserved and accessible in the new MBOX format, providing flexibility and compatibility with different email applications.

Export Complete OST File Data

This software tool enables the export of complete data from OST (Offline Storage Table) files to MBOX format. With this converter, users can extract all components of an OST file, including emails, attachments, contacts, calendars, and tasks, and save them in the MBOX format. Magus OST to MBOX Converter ensures a comprehensive export of all OST file contents, providing flexibility in data management and usage

Maintains the Folder Struture

Magus OST conversion tool maintains the original hierarchy and organization of folders within the OST file, including subfolders, are preserved in the resulting MBOX file. By maintaining the folder structure, users can easily navigate and locate their emails and other mailbox items in the converted MBOX file, ensuring a seamless transition and efficient management of data across different email clients that support MBOX format.

Convert OST to Other Formats

Magus OST converter is a versatile software tool designed to convert OST files to various other formats. It enables users to convert OST files to popular formats such as PST (Personal Storage Table), MBOX, EML, MSG, and more. This conversion allows for easy migration and access to OST data across different email clients and platforms. Whether it's extracting emails, attachments, contacts, calendars, or other mailbox items, Magus OST Converter ensures a seamless and comprehensive conversion.

Open OST file in Thunderbird

Once the OST to MBOX converter creates a .mbox file, you can open the converted MBOX file in Thunderbird by using its import wizard. Thunderbird will import the MBOX file, allowing you to access and manage the OST file data within Thunderbird's interface. Similarly, you can import OST in Apple Mail, SeaMonkey, PocoMail etc.

Convert Orphan OST to MBOX

Orphaned OST files are those that have become disconnected from their original Exchange server or mailbox. By using Magus OST to MBOX Converter, users can convert these orphaned and old OST files to MBOX format. This conversion process ensures that the data stored in the orphaned OST files remains accessible and usable in the MBOX format.

Support All Version of MS Outlook

Magus OST Converter is a versatile software tool that supports conversion of OST (Offline Storage Table) files across all versions of Microsoft Outlook. Whether you are using Outlook 2003, 2007, 2010, 2013, 2016, 2019, or even the latest Outlook version, the Magus OST Converter can effectively handle the conversion process. It ensures compatibility and seamless conversion regardless of the Outlook version you are using.

No MS Outlook Installation Required

Magus OST to MBOX Converter offers the advantage of not requiring Microsoft Outlook installation for the conversion process. Users can convert OST (Offline Storage Table) files to MBOX format without the need to have Outlook installed on their system. This feature provides convenience and flexibility, allowing users to convert their OST files to MBOX even if they don't have Outlook installed or if they are using a system without Outlook.

System Requirements

Know what all you need to use Magus OST to MBOX Conversion Tool

Trial Version:

The trial version of Magus OST to MBOX Conversion Tool will let you convert only 10 emails from each folder of OST file. For complete unlimited conversion you have to purchase the full license version.

System & Hardware Requirements
  • Minimum 512 MB RAM
  • Minimum 200 MB of free Hard disk space
  • Processor: Pentium Class
Compatible with Windows PC:
  • Windows Vista (32 and 64 bit) SP1
  • Windows 7 (32 and 64 bit)
  • Windows 8 (32 and 64 bit)
  • Windows 10 (32 and 64 bit)
Compatible with MS Outlook:
  • Microsoft Outlook 2003® SP3
  • Microsoft Outlook 2007® SP2
  • Microsoft Outlook 2010® (32 and 64 bit)
  • Microsoft Outlook 2013® (32 and 64 bit)
  • Microsoft Outlook 2016® (32 and 64 bit)
  • Microsoft Outlook 2019® (32 and 64 bit)
  • Microsoft Outlook 2021® (32 and 64 bit)
  • Microsoft Outlook 365

Screenshots OST to MBOX Converter

Personal License

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$29 $19

$99 $69

$149 $99

Single User License

Suitable for upto 2 users / machines

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Lifetime free product upgrade

Multiple User License

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Frequenly Asked Questions

Q:Can i convert entire OST file at a time?

A:Yes, you can convert complete OST file data in one go using OST to MBOX converter.

Q: I have multiple OST files, can i convert all of them together?

A: Yes, the tool does support multiple OST files conversion at a time. However, for best results, you should convert one OST file at a time to avoid data loss and conversion errors. Also, you can use the OST conversion tool multiple times to convert as many OST files as you want into MBOX file format.

Q: Is there any limitation on OST file size?

A: No, the software does not impose any limitation on OST file size. Smoothly convert large OST files of any size into MBOX with MS Outlook OST to MBOX converter.

Q: Can i import the converted MBOX file to my Apple Mail in Mac machine?

A: Yes, you can open the MBOX file into Apple Mail in your MAC. But you need to peform the OST to MBOX conversion on a Windows PC.

Q: How can i import Google Takeout to MS Outlook?

A: For this you can read how to import Google takeout take away to Outlook. For this, you need to export Google Takeout takeaway into PST format and import PST into Outlook via import/export wizard.

Q: How can i import MBOX file created by your tool in Gmail?

A: The software create .mbox file which is compatible with every application that reads .mbox file format. You can easily import MBOX file in Gmail as well as Apple Mail, Thunderbird, SeaMonkey, Mutt Mail, Mailspring etc.