What is included in Stellar Migrator for Outlook?

Mailbox Repair – Scans and rebuilds corrupt PST and OST mailboxes
Three Destinations – Migrate to Microsoft 365, Exchange, or Outlook profiles
Incremental Migration – Delta runs move only new items, skipping duplicates
Secure Direct Transfer – OAuth 2.0 connection with zero local data caching
Core Capacity – Migrates Outlook 2007 to 2021 PST and OST files
Important – Source must be a PST or OST file, not a live server

What are the main benefits of Stellar Migrator for Outlook?

Stellar Migrator for Outlook is a Windows desktop tool that repairs Outlook PST and OST mailboxes and moves them into Microsoft 365, a live Exchange Server, or another Outlook profile. The whole migration runs through your own machine, so mailbox data never passes through a third-party cloud.

No PowerShell – Avoids native upload scripts and manual import jobs
Data Sovereignty – Mailbox data never touches a third-party cloud
Selective Control – Pick folders, date ranges, and email IDs
Damaged File Support – Migrates corrupt and password-protected PST or OST
Folder Structure – Preserves the original hierarchy on the destination
Free Preview – Inspect repaired items before buying or migrating

Data loss is expensive: How backups help you avoid outages
Learn how combining recovery utilities with reliable backup solutions protects your critical files

What does Stellar Migrator for Outlook do?

Stellar Migrator for Outlook scans an Outlook PST or OST file, repairs it if it is damaged, and moves the contents to a Microsoft 365 account, a live Exchange Server, or an existing Outlook profile. It carries over emails, attachments, contacts, calendars, tasks, and journals while keeping the original folder hierarchy intact. Because the transfer runs through your own machine using OAuth 2.0, mailbox data is not cached on Stellar's servers during the move. The same scanned mailbox can also be saved back out as a fresh PST file.

Who is Stellar Migrator for Outlook best suited for?

It fits IT staff and consultants who need to move PST or OST archives into Microsoft 365 or Exchange without writing PowerShell scripts or creating Microsoft import jobs. A typical job is onboarding users from a previous organisation or consolidating years of scattered PST files into one mailbox, where the automatic split of new PSTs at roughly 45 GB keeps output files manageable. Home users with a single damaged PST can use it too, but the feature set is built for bulk mailbox handling rather than casual email backup.

Which destinations and source files does it support?

The tool reads PST and OST files from Outlook 2007 through 2021 and migrates them to three targets: a Microsoft 365 mailbox, a live Exchange Server, or an existing Outlook profile. You can direct the import into a chosen destination folder instead of dropping everything into the primary mailbox, which keeps historical or department data organised. Outlook does not need to be running to scan and preview a file, but it must be installed to use the saving and migration options. Advance filters let you include or exclude items by email ID and date range before the move starts.

Can it migrate corrupt or password-protected mailboxes?

Yes. Stellar Migrator for Outlook repairs damaged PST and OST files during the scan and can migrate password-protected and encrypted Outlook data files without breaking their integrity. Deleted items are recovered by default and shown in red in the preview, so you decide whether to include them before the migration runs. The practical difference from a plain import is that a mailbox Outlook refuses to open can still be scanned, previewed, and moved.

What limitations should users know before buying?

Stellar Migrator for Outlook works from Outlook data files, so the source must be a PST or OST file rather than a live mailbox on a server; tenant-to-tenant and server-to-server Exchange or Microsoft 365 migrations are handled by the separate Stellar Migrator for Exchange. The product is Windows-only and needs Outlook installed to complete the saving step, even though scanning and preview work without it. The free demo scans and previews repaired items but does not write or migrate them, so a licence is required to finish any transfer. There is effectively a single edition rather than separate Home and Technician tiers, so picking a version is not a decision point.

Frequently asked questions about Stellar Migrator for Outlook

Does Stellar Migrator for Outlook support incremental migration?

Yes. After an initial full migration, it can run again and move only new or changed items, which prevents duplicate emails and saves time and bandwidth on follow-up runs.

Does Outlook need to be closed during migration?

Microsoft Outlook must be closed before you start migrating to a Microsoft 365 account or an existing profile, and a Microsoft 365 account has to be configured in Outlook first. Scanning and previewing a file do not require Outlook to be open.