Deep Scan Technology
An advanced algorithm to scan and recover even highly corrupted PST files.
Bulk Outlook PST migration for 150GB+ mailboxes
Fix Large Outlook Mailbox Migration with Advanced PST to MBOX Converter
Total Ratings:189- Average Rating:4.9 out of 5Thank you for rating!Convert Outlook .pst archives to MBOX format with 100% accuracy. Supports complete emails,large mailboxes,attachments,folder structure,and all Outlook versions.
Supports batch conversion:export multiple Outlook PST files into MBOX in one click.
No additional tool required100% safe conversionWindows 11/10 supported
Softaken PST to MBOX Converter
75%
Deep Scan Progress
Source file:125.pst
Status:Scanning in progress...
12,450Emails
1,25,430Attachments
850Folders
00:08:45Time
Quick Summary
How do I export Outlook PST to MBOX without Outlook?
With Softaken's mailbox migration utility,you can select a PST file or a complete folder according to your requirement. Also,scan the mailbox data,preview PST emails,and export the desired data into MBOX format.
This whole complete action was done without Microsoft Outlook Installation. Making it suitable for email migration,enterprise data recovery,and cross-platform email compatibility with Thunderbird,Apple Mail,and other MBOX clients.
Summary:In the beginning,select the PST data,run a deep scan,preview mailbox items,and then export data into MBOX. This tool offers multiple features like supporting bulk migration,preserving folders and metadata,and there is no need to download Outlook.
Definition:MBOX is a universally used format for email storage,which is used by Thunderbird,Apple Mail,and Linux mail clients,making it a practical choice for cross-platform email migration. Check MBOX to PST Converter
Definition:MBOX is a universally used format for email storage,which is used by Thunderbird,Apple Mail,and Linux mail clients,making it a practical choice for cross-platform email migration. Check MBOX to PST Converter
Advanced Featuresfor Large PST Migration
Everything you need for a clean Outlook-to-MBOX migration.
Large File Optimization
Tested and optimized for large PST fileswith smooth processing.
No Outlook Required
Standalone application. No MS Outlook installation needed.
Advanced Filtering
Filter emails by date,subject,sender,recipient,and more.
Preview Before Conversion
Preview all mailbox items before saving to MBOX format.
Blazing Fast Conversion
Multi-threaded engine helps deliver ultra-fast conversion speed.
Why move from Outlook PST to MBOX?
Fix Outlook Freezing,Large PST Errors,and Mailbox Migration Issues
Moving from Outlook PST archives to MBOX is not only a format change. Users often need it when Outlook crashes,search stops working,or mailbox data must move to Thunderbird,Mac Mail,or another open email platform.
Large PST Corruption and 50GB Limit
Error:Outlook.pst has reached its maximum limit or Data Error (CRC)Reason:Older Outlook PST files reach 20GB,while newer PST files can become unstable. The mailbox item will corrupt or crash due to oversized data
Solution:Convert your PST data into MBOX so that you can easily access it on other email clients
Switching from Windows Outlook to Mac
Error:File is not compatible with Outlook for MacReason:Windows uses Outlook PST,whereas Macs need MBOX/OLM-based mailbox format
Solution:Use a dedicated Outlook-to-MBOX exporter to shift years of Outlook data into the Mac ecosystem.
Move to Open-Source Thunderbird
Error:Import failed:Generate Unknown file formatReason:Thunderbird is directly unable to support the PST format. Many users shift from Outlook subscription to free open-source email clients.
Solution:Use the MBOX format and make the migration smooth and easier
Broken Search Indexing in Outlook
Error:Search result incomplete or search bar unable to workReason:Large/old PST file failed the Outlook indexing,and users are unable to access their important emails
Solution:Load the MBOX data into any other email client,like Thunderbird,to restore faster mailbox search access.
Header Corruption &Metadata Loss
Error:Unknown Error 0x80040116 or email without a subject/senderReason:PST headers are sensitive,which can be caused by improper shutdown,slow network,and storage issues.
Solution:With the help of deep scanning,extract the mailbox items from the damaged PST files and convert the data into a fresh MBOX structure.
Outlook Not Installed or Subscription Missing
Error:"No default mail client found"or "Outlook installation required."Reason:Some converters depend on Outlook installation. If users only have an old PST file,they are unable to open it without Outlook.
Solution:This standalone mailbox migration tool works with no Outlook required,so users can extract mailbox data independently.
Powerful Features
Safe Migration Features:Outlook Mailbox to MBOX
Existing product capabilities are now grouped into clean,scannable cards so users can quickly understand what the software does.
Complete Migration
The software supports complete conversion of PST files,including internal folders like inbox,sent,deleted,etc. All the emails and attachments are converted safely along with the email components like to,cc,bcc,sent,from,etc.,without any trouble.
Seamless Bulk Migration
No need to add files one by one. Select an entire folder and convert multiple Outlook PST archivesinto MBOX together,while keeping data safe and loss-free.
Fast &Error Free Migration Support
The migration program transfers Outlook mailbox data into MBOX in a few minutes. During migration,users are assured of the quality because the migration tool doesn't damage PST files,and no data loss occurs. No format is changed,and no content is changed. It gives experience in copying and pasting data.
Powerful Migration Perform
Conversion of password-protected PST files is possible. The software has the ability to determine if there is password protection applied to your Outlook PST. After detection of the data,the conversion software swiftly converts the protected files to MBOX format.
Demo Version to Try
A free trial is available so that you can try to understand the functions of the program. Before you buy the application,feel free to try its demo version.
Support "Search" Option
Select the PST files that you want to convert. The Outlook conversion workflow supports picking individual PST files. It has a "Search" option to choose the file that the user wants to convert.
Saving of MBOX at User-Specified Location
In this feature,users have the freedom to save the converted items to the desired location. Once the PST file is ready for conversion,the software asks you to provide a location,either an existing or a separate folder,to save the MBOX file.
Organize Preview of Converted Mails
The tool supports preview of the desired emails in the main interface after migration. In a tree structure format,users can see a preview of converted data so that the quality of files can be checked.
Preserve Non-English characters
PST files containing non-English or double-byte characters,such as Japanese,Chinese,Korean,etc.,are easily converted to MBOX without issues when moving from .pst to .mbox.
Windows support for Outlook PST export
The program runs on Windows 11,10,8.1,8,7,and earlier editions. It supports the latest Microsoft Outlook versions for source PST files,including Outlook 2021,2019,2016,2013,2010,2007,and 2003.
Awards &Reviews
Trusted awards &reviews for Outlook mailbox migration
Expert recognition and trust signals for Softaken's migration suite.
Verified:100% Secure Download
We take your data safety seriously. Softonic has thoroughly scanned our installer and confirmed it’s completely clean and safe for your system.
View Softonic Report
No Spyware,No Adware. Period.
Our tool is built for one job:conversion. Software Informer's expert editors have verified that there are no hidden trackers or annoying bundles included.
Check Editor's Review
Top Pick for Speed &Reliability
Recognized for its fast performance,WeSuggest highlights our tool as a reliable solution for converting Outlook archives into standard MBOX files.
Learn More
Trusted by the CNET Community
With a solid 4-star rating on Download.com,we are proud to be a community favorite for reliable and accurate mailbox migration.
Read User Ratings
Awarded for Best User Experience
Customer happiness is our biggest win. This award reflects our commitment to making complex data migration simple and stress-free for everyone.
View Award DetailsFree vs Full Version
Choose the right license:demo vs full migration
The demo version helps users preview conversion quality,while the full version unlocks complete migration.
| Feature | Free Version | Full Version |
|---|---|---|
| Convert Outlook PST to MBOX | ×Limited demo output | ✓Unlimited |
| Convert encrypted PST files | ×Not supported | ✓Fully supported |
| Preview emails | ✓Available | ✓Unlimited |
| Preserve folders and attachments. | ✓Included | ✓Included |
| Technical support | ×Not included | ✓Priority support |
| Commercial use | ×Not allowed | ✓Allowed |
Tool Comparison
Why Softaken Is Built for Faster Large PST Migration
This comparison shows where Softaken leads on speed,oversized PST handling,and Outlook-free migration versus typical basic tools.
| Migration Capability | Softaken Outlook-to-MBOX | Typical Basic Converter |
|---|---|---|
| Large file support | ✓Handles 150GB+ PST data with Advanced Data Handling | ×Often slows down or fails on oversized PST files |
| Bulk Migration | ✓Add Folder mode for multiple PST files in one batch | ×Usually one PST file at a time |
| Speed | ✓High-speed algorithms for large mailbox conversion | ×Limited processing for heavy mailbox data |
| Outlook dependency | ✓No Outlook Required | ×May require Outlook installation |
| Damaged PST recovery | ✓Deep Scan extracts data from corrupt PST files | ×May skip or fail on damaged folders |
| Cross-platform output | ✓MBOX for Thunderbird,Apple Mail,Entourage,Eudora | ×Limited client compatibility |
Simple Workflow
Convert Large PST Files to MBOX in 4 Clear Steps
Select the PST files
Select a single PST file or use Add Folder to load multiple PST files for Bulk Migration.
Scan the files
Run Deep Scan to read mailbox folders,recover damaged items,and prepare data for export.
Preview mailbox data
Preview emails,attachments,folders,metadata,and selected items before conversion.
Export to MBOX
Choose the destination path and export selected PST data into MBOX format safely.
Customer Reviews
Trusted by Users Migrating PST Mailbox Data
Benjamin Davis
Australia★★★★★
There are multiple tools available in the market,but Softaken's Outlook migration tool worked for us. A great and simple handling utility.
Verified software user
Johannes Hager
Austria★★★★★
I was looking for an effective mailbox export solution. Softaken's PST-to-MBOX software worked for me.
Verified software user
Oliver Greifenhain
Germany★★★★★
With Softaken's utility I migrated 1000 plus emails from my Outlook archive into MBOX in a very short time period.
Verified software user30-Day Money Back Guarantee
100% Virus-Free &Secure
SSL Secured Connection
24/7 Expert Support
Technical Specifications
System requirements &Windows support
Processor:Any Pentium-class or higher processor. Memory:512 MB RAM minimum. Hard Disk:100 MB free space for software installation,plus additional space for exported MBOX files.
Windows 11,10,8.1,8,7,and earlier Windows editions.
Software available in these languages:
EnglishAfrikaansFrenchDutchJapanesePortugueseSpanishChineseGermanItalianRussianIndonesianDanishHungarianNorwegianPolishSwedishTurkishVietnameseCzechThai
Electronic delivery via email. License details are usually delivered in minutes.
Support options include emails,chat and Skype.
FAQ
Mailbox migration FAQ
Yes,this Outlook migration utility fully supports exported PST files from modern Outlook versions,including Outlook 2021,2019,2016,2013,and Office 365.
No. The tool runs on an "Advanced Data Handling"engine that can smoothly convert PST files larger than 150GB to MBOX without crashing.
Yes,the tool provides an option to migrate data in bulk. You can use the Add Folder option and select the unlimited files that you want to migrate,which saves the time and effort of the users
No,the tool works on high-speed algorithms to process the bulk data. It can even smoothly convert 150GB+ total data without crashing.
Yes,even after Batch Conversion,the original folder structure,such as Inbox,Sent,Drafts,and sub-folders,remains the same as it was in Outlook.
Yes,the tool maintains 100% Data Integrity. Your email metadata,formatting,and Attachments remain the same as they were in the original PST file.
Yes,this tool can smoothly migrate your password-protected files into MBOX format without creating any errors.
Yes,MBOX is a universally supported format that can be easily imported into Apple Mail,Thunderbird,and more.
Yes,it includes a built-in Deep Scan feature that recovers data from corrupt or damaged PST files and converts it into a healthy MBOX format.
No,this is a standalone application. You can export PST archives to MBOX without installing Microsoft Outlook.
The Free Demo version lets you test the software and convert a limited number of emails from each folder. The Licensed version allows unlimited email conversion without restrictions.
Still have questions? Contact our 24/7 Technical Support.
Ready to migrate Outlook mailboxes to MBOX?
Join users who trust Softaken software for safe email migration and conversion tasks.
