Convert OST to MBOX
Adopt the reliable solution and export damaged and orphaned OST files to MBOX format. A Windows-Based OST to MBOX Conversion Tool that help users to migrate Outlook OST to several other email clients such as Thunderbird, Apple Mail, Windows Live, Postbox, PocoMail, etc. A reliable and well-developed solution with powerful features to convert .ost file to mbox.
- Convert OST files into MBOX format with complete data security.
- Export emails from corrupted OST files without Outlook installation.
- Preview mailbox database before starting the conversion process.
- Preserve email formatting throughout the entire conversion process.
- Support conversion of large-sized OST files without size limitations.
- Allows users to convert OST to MBOX in bulk, saving valuable time.
- Maintain folder hierarchy throughout entire OST to MBOX conversion.
- Convert selected emails using advanced search options efficiently.
- Compatible with Outlook 2021, 2019, 2016, 2013, and earlier versions.
Certified & Highly Reviewed By Leading Software Authorities
Features of the Convert OST to MBOX
Enterprise-grade recovery and conversion, packed into a simple desktop app — no technical expertise or Exchange server required.
An Affordable Utility
An excellent software that user can purchase it at a reasonable price and take benefits of all its useful features. Using this users can easily convert ost to MBOX file format
Performs Single or Bulk Export
The OST to MBOX tool facilitates to execute both single and multiple OST files migration in MBOX file format in a very hassle-free manner without damaging any OST item.
Support Damage OST
The application helps in transferring all offline, damaged and inaccessible OST files into MBOX format. It moves the all OSTs with its entire content preserved.
Previews All Outlook OST Data Items
Before moving OST data to MBOX, the tool generates the detailed information of the Outlook OST file providing a preview. User can view each OST item or attachments clicking on them.
Offers Various OST Email Search Options
Through this additional feature of the tool, user can search the OST emails using To, Cc, Date, Subject, etc. This help users in filtering OST emails and then migrate to MBOX data file format.
Provides Migration of Selected OST Folders
The tool offers the facility to perform the conversion of selected OST folder/sub-folder/items to migrate OST to MBOX file format. It is helpful when user want only few OST data to move to other format.
No Use of Outlook/Exchange Server/PowerShell
While using OST to MBOX Converter, there is no need to install and configure MS Outlook email client and the Exchange Server. There is also no requirement of the PowerShell as the software completely based on graphical user interface.
Extracted Format Supports Different Email Clients
The software exported accurate MBOX file. The extracted MBOX file format helps user to easily upload their OST data file to different email clients such as PocoMail, Thunderbird, Entourage, Apple Mail, SeaMonkey, etc.
Exports Only Contacts & Calendars
The tool provides users the opportunity to import OST contacts and calendars separately into MBOX format. While uploading OST file into MBOX the software never harms their properties and maintains the originality of contacts and calendars.
Supports All Windows Platform
The application works in Windows operating system of all editions including 10, 8.1, 8, 7, Vista, Xp, etc. Any user with Windows OS in their system can install and use the software in their device.
Maintains Entire OST Properties
The tool performs the entire tasks without harming any OST item and keeps the information of the entire OSTs. The software always maintains the originality of the Outlook OST file even moving OST to MBOX.
Saves MBOX to Specified Location
After completion of the tasks, the application transfers the MBOX data file to the mentioned location of the system. User can choose any location and saves the MBOX file locally.
We Convert All Data from OST to MBOX Format!
Every folder hierarchy, email header, and embedded attachment is processed with 100% bit-exact fidelity into MBOX format.
Email Messages & Metadata
Complete email fidelity with zero loss
MailsDaddy OST Converter for Outlook offers an ideal solution to convert OST emails while preserving all email properties. The software always maintains the original folder structure and keeps the original formatting of the email body.
Supported Elements & Formats:
Convert OST to MBOX in 4 Simple Steps
No technical skills needed. Watch each step in the live software interface or click any step below.
Looking for the complete user manual and working guide?
Explore comprehensive guides for standard PST conversion, search & filter migration, and Live Exchange Server export.
Technical Specifications
Engineered for lightweight footprint, standalone execution, and broad enterprise compatibility for Convert OST to MBOX.
System Requirements
Full support for Windows Server 2022, 2019, 2016, 2012, 2008 & 2003 (32/64-bit)
Platform Support
Supported Formats
OST (Corrupted, Orphaned, Encrypted, Password-Protected, IMAP)
Direct export to Live Exchange Server
Retains all inline, embedded & external attachments
100% Offline & Private
Zero cloud uploads or telemetry. Processing happens strictly within your local machine.
No Outlook Required
Completely standalone engine. Processes OST files without requiring host email clients.
No File Size Limits
Tested on massive 50GB, 100GB, and 500GB+ enterprise mailboxes with zero crash.
Full Windows Support
Native execution across Windows 11 down to Windows XP & all Windows Server editions.
Trusted by IT teams and professionals worldwide
Explore our client testimonials to see why users trust and recommend our solutions.
“I wanted to open OST file to the Entourage email client. While searching over the Internet I found this solution. At the first I tried its Demo; I found is good to use and though of purchasing the application. It is really a simple, effective and valuable converter.”
Willy Turner
“I had the corrupted OST file and looking to move OST file to Apple Mail, then one of my friend recommended MailsDaddy OST to MBOX tool. The application help me in recovering my damaged OST data moving secure to MBOX format. It really helped me solve my issue.”
Shawn Miller
“I found this software really helpful to migrates all OST emails, contacts, calendars, notes, etc. into MBOX file format. It is so smooth and quick that it completed my entire work in few minutes.”
Jody Rain
Frequently Asked Questions
Find clear answers regarding the Convert OST to MBOX conversion process, file compatibility, and recovery features.
Yes, you can convert your dismounted, offline, corrupted or inaccessible OSTs into MBOX format.
Stop fighting with a broken OST file.
Download the free trial and see your mailbox recovered in minutes — no credit card, no commitment.