Production-ready, open-source platform for enterprise email migration. Automate your entire migration lifecycle with real-time monitoring, scalable workers, and zero-downtime cutover.
Community trust
Mailboxes migrated
Total volume processed
Migration reliability
Trusted by 500+ organizations worldwide for enterprise email migration
Everything you need for successful email migrations at scale
Leverage battle-tested ImapSync for email, Microsoft Graph API for contacts and calendars, and intelligent parallel processing for maximum throughput. Handle mailboxes from 1GB to 100GB+ with ease.
Define your migration strategy once, apply everywhere. Pre-sync prepares accounts, sync moves data, cutover finalizes. Each phase is fully customizable with 20+ lifecycle actions.
Never wonder about migration status again. WebSocket-powered dashboard updates in real-time. Track active tasks, view detailed logs, and monitor worker health from a beautiful interface.
Start with one worker, scale to dozens. Docker-based Celery workers can be added on-demand with a single command. Intelligent queue routing ensures priority tasks get processed first.
Manage multiple Microsoft 365 tenants and Zimbra servers from a single platform. CSV import, OAuth auto-discovery, and role-based access control for team collaboration.
OAuth 2.0 for Microsoft authentication, TLS for all connections, encrypted token storage in PostgreSQL, and CSRF protection. All data stays within your infrastructure.
Three automated phases ensure zero data loss and minimal user disruption
Prepare accounts and infrastructure for seamless migration
Migrate all data while users continue working normally
Finalize migration and transition users to Zimbra
Total Migration Time: Small mailboxes (1-5GB): 2-3 hours | Medium (5-20GB): 4-8 hours | Large (20GB+): 10-24 hours
Seamless data transfer from Microsoft 365 to Zimbra
Everything you need to manage enterprise email migrations from start to finish
Watch a complete migration walkthrough
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Select the migration solution that fits your business needs
Full control with self-hosted infrastructure. Deploy on your own servers for maximum security and customization.
Hassle-free migration with our fully managed cloud service. We handle everything from setup to maintenance.
Tailored migration solution for complex enterprise requirements. White-glove service with dedicated experts.
Not sure which option is right for you?
Join hundreds of organizations that have successfully migrated from Microsoft 365 to Zimbra with zero data loss and minimal downtime.
Have questions? Need help getting started? We're here to support your migration journey
Choose the best way to reach us. For technical support, GitHub Issues is recommended. For business inquiries, use the contact form.
Report issues, request features, contribute code
github.com/scalenix
For general inquiries and business questions
contact@scalenix.fr