Microsoft 365 tenant migrations can become complex during mergers and acquisitions, business restructuring, or when enterprises consolidate multiple Microsoft 365 environments. A reliable Microsoft 365 tenant-to-tenant mailbox migration process helps IT administrators and technicians transfer user mailboxes while preserving emails, attachments, folders, contacts, and other essential mailbox data. The Cigati Microsoft 365 tenant-to-tenant migration tool simplifies cross-tenant migration with bulk mailbox transfer, selective migration options, folder hierarchy preservation, and efficient handling of multiple user accounts. It helps enterprises reduce manual effort, minimise downtime, and maintain data integrity throughout the migration process.