Google Workspace to Microsoft 365 Mailbox Migration

Challenge

A professional services organization needed to migrate its email environment from Google Workspace to Microsoft 365 while maintaining reliable mail flow, reducing disruption for users, and preparing the organization for a Microsoft 365-based collaboration platform. The migration needed to account for routing domains, user mailbox creation, mail forwarding, DNS cutover, access validation, and staged migration activity before the final transition.

Approach

Safari Micro structured the project around a phased migration model. The first phase covered discovery, access, and tenant readiness — including domain registration, user account recreation, mailbox licensing alignment, routing aliases, and forwarding configuration. The second phase set up dedicated routing domains and configured BitTitan MigrationWiz as the migration engine. The third phase focused on validation and staged pre-migration. The final phase executed the full migration pass, updated forwarding behavior, and coordinated the MX record change to route primary mail flow to Microsoft 365.

Results

• Approximately 124 mailboxes migrated from Google Workspace to Microsoft 365
• Microsoft 365 tenant prepared for production email use
• Mail routing configured and validated before cutover
• User mailboxes mapped and migrated through BitTitan MigrationWiz
• Pre-stage migration completed to reduce final cutover risk
• Migration errors reviewed and remediated before production transition
• Final MX record cutover completed to route primary mail flow into Microsoft 365
• End-user communication support provided around the migration event