CloudM Migrate vs Stellar Migrator for Exchange

CloudM Migrate moves users, mail, files and shared data to Google Workspace or Microsoft 365. It handles mailboxes, folders, attachments, contacts and calendars, and supports more than 20 source platforms, including on-premises servers, Zimbra, Box and Dropbox. Before migration, discovery scans mailbox volumes, item counts, folder depth and potential issues. Pilot, bulk and delta passes support phased moves and data catch-up through cutover; reporting, audit logs and service logs help track progress and diagnose issues. Customers can choose CloudM-hosted deployment or run Migrate in their own infrastructure. In self-hosted deployments, migration content stays within customer-controlled infrastructure, is encrypted in transit, and temporary files use AES-256 encryption. Each license includes a 12-month migration license and unlimited catch-up runs during that period. Document version history is supported for Microsoft 365 destinations, while Google Workspace receives only the latest document version. CloudM offers serviced migration options, including planning, execution, go-live and post-migration support. Pricing is on request, with license options priced per user or data volume and serviced migration available by quote.

Stellar Migrator for Exchange moves mailboxes among Exchange Server and Microsoft 365 environments, including transfers between Microsoft 365 tenants. It supports primary, shared, and archive mailboxes as well as public folders, and can run cutover, staged, or hybrid migrations all at once or in batches. Delta migration transfers new or changed data after an initial move. Up to 10 mailboxes and their items can be migrated simultaneously. Users can match mailboxes automatically or map them manually, including with a CSV file, select folders such as email, contacts, calendars, tasks, notes, and journals, and filter mail by date range. Failed or incomplete migrations can be rerun, with automatic retries set from 1 to 5 attempts. It runs on Windows and requires at least 8 GB of memory. The free trial covers 2 mailboxes and includes all migration capabilities; Mailbox Pricing is $250, paid once, billed $10 Per Mailbox, with quantity selected on the page and one license per source mailbox.