Fast, secure, and scalable mailbox migration across Exchange and Microsoft 365, with auto-mapping, incremental sync, and audit-ready reports to ensure business continuity.

Simplify Complex Microsoft 365 and Exchange Migrations
Mailbox migration is essential during IT upgrades, mergers, and cloud transitions — but it often leads to data loss, extended downtime, or operational disruption if not handled with the right tools.

Stellar Migrator for Exchange

is a powerful, automated solution designed to streamline mailbox transfers between Exchange Servers and Microsoft 365 environments — ensuring data integrity, minimal disruption, and full compliance.

Fast, Flexible & Secure Migration

Migrate up to 10 mailboxes in parallel with auto and manual mailbox mapping. Perform selective, staged, or full migrations to fit your IT strategy. Built to support high-volume enterprise deployments with ease.

Built for Hybrid, Cross-Tenant & Cross-Forest Scenarios

Seamlessly migrate across Exchange Server versions, domains, forests, and Microsoft 365 tenants — ideal for mergers, acquisitions, and hybrid environments.

Minimize Downtime, Maximize Transparency

Users continue working with minimal impact thanks to incremental sync. Real-time dashboards and detailed audit logs help IT teams ensure visibility and compliance throughout the process.

• Trusted Brand Since 1993: Backed by Stellar's 30+ years of expertise in email recovery and migration.
• No Downtime, No Data Loss: Zero-impact migration while end users remain fully operational.
• Enterprise Scalability: Supports thousands of mailboxes, archive mailboxes, and public folders.
• Security & Compliance Ready: Generates audit logs; ideal for GDPR, HIPAA, and enterprise governance.
• Built by Microsoft-Certified Experts: Developed and validated by Exchange professionals and MVP reviewers.

 Key Features and Benefits

• Parallel Mailbox Migration
  Migrate up to 10 mailboxes simultaneously to reduce total project time.
• Selective & Priority-Based Migration
  Choose specific folders, users, or date ranges; migrate critical mailboxes first.
• Incremental Synchronization
  Transfer only new or modified data after initial migration to avoid duplication.
• Automated Mailbox Mapping
  Auto-map mailboxes using user IDs or manually map using CSVs.
• Real-Time Monitoring & Audit Reports
  Live dashboards and exportable logs ensure progress tracking and compliance readiness.
• Cross-Forest, Cross-Domain & Cross-Tenant Support
  Full migration support across hybrid and multi-tenant environments.
• Comprehensive Mailbox Coverage
  Migrate primary mailboxes, archive mailboxes, and public folders with full data integrity.
• Zero Downtime for End Users
  Background migration allows uninterrupted access for users.

Supported Migration Scenarios

• Exchange Server 2010/2013/2016/2019 → Microsoft 365
• Microsoft 365 → Microsoft 365 (cross-tenant)
• Microsoft 365 → On-premises Exchange
• Exchange Server → Exchange Server (cross-version/domain/forest)
• Hybrid Exchange coexistence migrations