#1 Trusted Migration Solution

Import PST & OST to Office 365 / IMAP

A lightweight utility to migrate archived MS Outlook for Windows data to Office 365 or any IMAP-supporting email services without losing data!

(Average Rating 4.6 based on 150 ratings)
  • Requires Graph API &OAuth for conversion
  • Supports SSL/TLS or STARTTLS encryption for secure IMAP support
  • Enables conversion of emails with their attachments
  • Requires no additional applications to convert Outlook to Office 365
  • Free trial for everyone before getting lifetime valid licensed version
Secure OAuth Authentication
Office 365 &IMAP
Folder Mapping
Checkpoint Resume
HTML Reports
Softaken PST and OST to Office 365 and IMAP Importer
ScreenshotsVideoUser GuideSystem Requirements
Download Now100% SafeBuy Now
Easy to UseSimple step-by-step workflow
No Data LossKeep folder hierarchy
Duplicate ProtectionAvoid duplicate items
Detailed ReportsHTML report after migration

Supported Migration Details

Supported Source Types

  • Designed to convert both Unicode and ANSI PST files
  • Batch conversion support
  • Enables conversion of OST files

Supported Item Types

  • Capable of exporting emails
  • Attachments
  • Sticky notes
  • Tasks
  • Calendar
  • Contacts

Destination

  • Supports conversion directly to Office 365 mailboxes
  • Requires an OAuth-Secured MS Graph API upload
  • IMAP account
  • Saves migrated data to a specified folder

Why This Tool Is Better Than Alternatives

How this importer compares with manual Outlook import,basic converters,and DIY PowerShell scripts

CapabilitySoftaken ImporterManual Outlook ImportBasic PST ConvertersPowerShell / DIY Scripts
Works without old mail serverYes — PST/OST directPartialYesDepends on setup
Microsoft Graph (modern API)YesNo (MAPI/Outlook)Often IMAP/EWS onlyPossible but complex
Preserve folder hierarchyYes — dedicated optionManual drag-dropVariesCustom scripting
Contacts + Calendar + TasksYes — built-inSeparate stepsOften mail onlyMultiple scripts
Pause / Resume / CheckpointYesNoRareCustom build
Duplicate-safe re-runYes — idempotencyCreates duplicatesVariesCustom build
Retry failed items onlyYesNoRareCustom build
IMAP destination supportYes — PST/OST to IMAPNoSome toolsPossible
HTML migration reportYesNoBasic logsCustom logging
Ease of use (GUI)Point-and-clickManual effortUsually GUITechnical only
OST file supportYesLimitedVariesVaries
Features
Specifications
Faq
Review

Key Features

Export PST/OST to Office 365/IMAP

This reliable conversion app allows you to export selected archived OST/PST files to move to a specific Office 365 or IMAP account. The conversion process requires no additional tools or in-depth technical skills.

Restore Folder Hierarchy

The conversion tool mirrors your original files. It perfectly preserves your folder structure whether you export entire mailboxes or selected folders of PST/OST files.

Support Advanced Filtration

Once a PST file is uploaded,the tool can export all data or specific folders. Its preview pane gives you the flexibility to filter and transfers only specific folders,which means no trash files.

Safe to Use with Secure Sign-In

For login to an Office 365 account in the software,it supports OAuth 2.0 sign-in support which means your data is never stored on disk. For IMAP account,the utility supports SSL/TLS.

Tools Faq's

This is a standalone application for which you don't need additional tools. The conversion program safely processes and exports archived Outlook files entirely on its own.

This tool supports an advanced Checkpoint File system to track the progress so it doesn't restart conversion from scratch. As the connection reestablishes,the tool simply resumes the conversion process right from where it has left off.

The tool uses SHA-256 content fingerprinting to track each item uploaded in the cloud. It immediately identifies duplicate items.

The licensed version validity is unlimited which means it can export unlimited OST/PST files.

This app can handle large mailboxes without freezing. However,it supports individual attachments up to 20 MB and can scale its timeout threshold for massive messages up to 50 MB.

Software Specifications

System needs,delivery,licensing,support,&documentation at a glance.

System Requirements

  • Designed only for Windows 11,10,8,and 7 — 64-bit
  • 1 GHz or faster processor
  • Minimum 2 GB or max 4 GB RAM
  • Ideal display 1074 × 768
  • Requires 200 MB of disk space

Runtime &Dependencies

  • .NET Framework 4.7.2 or a compatible runtime
  • Stable internet connection for smooth performance
  • Supports local PST and OST files

Licensing &Delivery

  • Each license is $29 USD
  • Discount on bulk purchase
  • Delivery via email within 15 minutes

Interface &Support

  • Interactive English language interface
  • Live chat and email support
  • HTML migration reports

At a Glance

Product
PST &OST to Office 365 / IMAP Importer v2.0
Platform
Microsoft Windows 7 through 11 (64-bit recommended)
Source data
Outlook PST &OST files (Unicode &ANSI)
Destination
Microsoft 365 / Office 365 or IMAP mailbox
License model
1 license activates 1 destination mailbox account
List price
$29 USD (volume discounts at checkout)
Delivery method
License key via email (~15 minutes)
Interface language
English
Support channels
Email &live chat

Documentation &Guides

How to UseStep-by-step workflowScreenshotsProduct interfaceVideo TutorialWatch the migration processSystem RequirementsFull pre-install checklist

Recent Blogs

Demo (Trial) vs Full Version

Side-by-side comparison of the free trial and the licensed full version

FeatureDemo / Trial VersionFull Version
License activationNot required Required (signed license key)
Email migration limitFirst 50 emails from Inbox only Unlimited emails (per licensed account)
Folder selectionInbox only (demo ignores other folders) All selected folders and subfolders
Contacts,Calendar,TasksLimited by demo email cap Full migration of all item types
PST/OST source filesEvaluate with sample data One PST or OST source per licensed account
Keep folder structureYes (for demo Inbox scope) Yes — full hierarchy
Pause / ResumeYes Yes
HTML migration reportYes Yes
Retry failed itemsYes Yes
Duplicate-safe re-importYes Yes
Window title"Trial Version 2.0""Full Version 2.0"
Buy / upgradeBuy at softaken.comN/A (already licensed)

What Users Say

Feedback from businesses for this professional program.

4.6out of 5Based on 150 ratings
Sarah M.

Sarah M.

★★★★☆
United States
Business User
Verified

The free trial limits the number of emails you can convert,which I found a bit annoying. However,the overall function of the tool is smooth and user-friendly.

David R.

David R.

★★★★★
United Kingdom
Team Lead
Verified

Before this tool,it was incredibly time-consuming for our team to move archived Outlook files. Now,it's just a matter of a few clicks. We are expecting some more advanced features down the road,but it works great.

Michael T.

Michael T.

★★★★★
Canada
Customer
Verified

Accidentally bought the wrong tool,but their instant support team helped me fix my mistake immediately and I got my money back. Great service!

Jennifer L.

Jennifer L.

★★★★★
Australia
Office Manager
Verified

Our team members are not IT experts,but none of them needed admin help to run this program. Plus,it backs up large files without freezing.

Robert K.

Robert K.

★★★★★
Germany
IT Coordinator
Verified

I had a lot of overlapping backup folders and was worried about uploading duplicates into our clean cloud mailboxes. This tool saved me a ton of time and effort by skipping the repeat emails automatically.

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