Few systems are as mission-critical — or as nerve-wracking to move — as business email. A botched migration means lost messages, broken workflows, and a support queue full of angry colleagues.
Plan for zero lost mail
A clean email migration preserves every message and folder, avoids downtime, and keeps your sending reputation intact through the switch. That requires sequencing, not a single risky flip.
- Sync historical mail before cutting over.
- Update DNS and authentication carefully to protect deliverability.
- Cut over in a window users know about, with a fallback ready.
The first week matters most
Watch closely right after the move. The first week reveals any routing or reputation issues while they are still small and easy to correct.