Zimbra Migration Services

Email Migration Scenarios I Handle

Every migration is unique. Whether you're moving from a legacy mail server to Zimbra, upgrading between Zimbra versions, or consolidating multiple domains — I provide end-to-end migration planning and execution.

Migration Types

• Google Workspace (Gmail) to Zimbra — full mailbox, contacts, and calendar migration
• Microsoft Exchange / Office 365 to Zimbra — including shared mailboxes and public folders
• Zimbra to Zimbra — cross-version upgrades (Zimbra 8.x → 10.x) and server relocation
• Zimbra to Carbonio CE — feature-matched migration with Zextras module transfer
• IMAP-based migration from any standard mail server
• PST file import into Zimbra mailboxes
• Zimbra export to PST format for Outlook compatibility
• Multi-domain batch migration with user mapping

My Migration Process

• Assessment — Audit current mail infrastructure, mailbox sizes, and dependencies
• Planning — Create migration timeline, user mapping, and rollback strategy
• Pre-Migration Testing — Pilot migration of sample accounts to verify integrity
• DNS Preparation — Pre-configure MX, SPF, DKIM, DMARC for cutover
• Execution — Bulk migration using imapsync, zmmailbox, or custom scripts
• Verification — Post-migration validation of mailbox counts, folder structures, and attachments
• Cutover — DNS switch with minimal propagation delay
• Post-Migration Support — 7-day monitoring for delivery issues and user support

Tools & Techniques

I leverage industry-standard tools including imapsync, zmmailbox, zxsuite, custom Python scripts, and direct SOAP/REST API calls to ensure reliable, high-performance migrations. Every migration includes detailed logging and progress reporting.

Track Record

• 500+ mailboxes migrated successfully across multiple projects
• Zero data loss record maintained across all migrations
• Average downtime: less than 30 minutes during DNS cutover
• Experience with mailboxes ranging from 100MB to 50GB+