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Stellar Migrator for Exchange
Houston, Texas, United States
What it is
Stellar Migrator for Exchange moves mailboxes between Exchange Server and Microsoft 365, including tenant-to-tenant transfers, without complex PowerShell scripting. It supports Exchange Server to Exchange Server, Exchange Server to Microsoft 365, Microsoft 365 to Exchange Server, and Microsoft 365 tenant-to-tenant routes. Mailbox coverage includes primary, shared, and archive mailboxes, plus public folders. Cutover, staged, and hybrid migrations can run all at once or in batches; delta migration transfers new or modified data after the initial pass. Up to 10 mailboxes and their items can migrate simultaneously. Users can match mailboxes automatically or map them manually, including through a CSV file, and select email, contacts, calendars, tasks, notes, or journals. Mail can also be filtered by date range. Failed or incomplete migrations can be rerun, with automatic retry attempts set from 1 to 5. The Windows software has a free trial for 2 mailboxes with all migration capabilities. Mailbox pricing is $250, paid once, billed at $10 per mailbox, with one license per source mailbox. The maker offers free migration support.
For and against
For
- Supports Exchange and Microsoft 365 migration routes.
- Handles primary, shared, and archive mailboxes.
- Can migrate up to 10 mailboxes simultaneously.
- Offers delta migration and configurable retries.
- Free trial covers 2 mailboxes.
Against
- Windows only; requires 64-bit Windows and 8 GB memory.
- Trial is limited to 2 mailboxes.
- No Google Workspace or IMAP support.
- Mailbox pricing is $10 per mailbox, with one license per source mailbox.
The verdict
Stellar Migrator for Exchange offers several Exchange and Microsoft 365 migration paths, with batch, selective, and delta migration options. Check the Windows requirements and per-source-mailbox licensing against the scope of your move.
Who it suits
It suits organizations moving to Microsoft 365, consolidating Exchange environments, or migrating tenants during restructurings, mergers, or acquisitions. It requires a supported 64-bit Windows system and at least 8 GB of memory.
Plans and prices
Free Trial
2 mailboxes · no credit card required · all migration capabilities available
Read 7 Oct 2026 · stellarinfo.com
Mailbox Pricing
Mailbox quantity selected on page; one license per source mailbox
Read 7 Oct 2026 · stellarinfo.com
On the record
- Hosted Exchange
- The product can migrate hosted Exchange mailboxes to Microsoft 365 using an administrator account or individual user credentials.stellarinfo.com · read 7 Oct 2026
- Incremental migration
- Delta migration transfers new or modified data after the initial migration.stellarinfo.com · read 7 Oct 2026
- Intended users
- The maker describes it for organizations moving to Microsoft 365, consolidating Exchange environments, and migrating tenants during restructurings, mergers, or acquisitions.stellarinfo.com · read 7 Oct 2026
- Mailbox concurrency
- The software can migrate up to 10 mailboxes and their items simultaneously.stellarinfo.com · read 7 Oct 2026
- Mailbox mapping
- It offers automatic mailbox matching and manual mapping, including use of a mapped CSV file.stellarinfo.com · read 7 Oct 2026
- Mailbox types
- It supports primary, shared, and archive mailboxes, as well as public folders.stellarinfo.com · read 7 Oct 2026
- Migration methods
- The product supports cutover, staged, and hybrid migrations, with migrations run all at once or in batches.stellarinfo.com · read 7 Oct 2026
- Migration routes
- Supported routes include Exchange Server to Exchange Server, Exchange Server to Microsoft 365, Microsoft 365 to Exchange Server, and Microsoft 365 tenant to tenant.stellarinfo.com · read 7 Oct 2026
- Purpose
- The software migrates mailboxes between Exchange Server and Microsoft 365 without complex PowerShell scripting.stellarinfo.com · read 7 Oct 2026
- Retry support
- Failed or incomplete migrations can be rerun, with automatic retry attempts configurable from 1 to 5.stellarinfo.com · read 7 Oct 2026
- Security and data handling
- The maker says data is copied directly from source to target and does not impact source server data.stellarinfo.com · read 7 Oct 2026
- Selective migration
- Users can select folder types such as email, contacts, calendars, tasks, notes, and journals, and filter mail items by date range.stellarinfo.com · read 7 Oct 2026
- Support
- The maker offers free support during migration and says its technical team can guide customers through preparation and migration.stellarinfo.com · read 7 Oct 2026
- System requirements
- The product requires 64-bit Windows 11, 10, 8.1, or 8, or Windows Server 2022, 2019, 2016, or 2012, with at least 8 GB of memory.stellarinfo.com · read 7 Oct 2026
