Legacy & Custom System Migration with StrataMail
Organizations running Microsoft Exchange, Zimbra, MDaemon, or other on-premise mail systems face a common challenge: how to modernize email infrastructure without disrupting operations or forcing a "big bang" migration. StrataMail Hybrid Split Domain solution enables gradual migration, long-term coexistence, or selective cloud adoption while maintaining unified domain identity and centralized security.
The StrataMail Routing Cloud acts as an intelligent intermediary, handling inbound filtering, outbound relay, and smart routing across both your legacy systems and modern cloud platforms. Whether you're planning a phased migration to Microsoft 365, maintaining hybrid infrastructure for compliance reasons, or simply modernizing parts of your email stack, StrataMail provides the routing intelligence and security layer you need.
- Continue using Exchange, Zimbra, or other on-premise systems during migration
- Centralized filtering and security for all mailboxes, regardless of backend
- Smart routing based on user, department, or custom policies
- Support for phased migrations with automatic failover and monitoring
- Unified journaling, compliance, and audit logs across all mail platforms
Next step
Talk to us about split-domain routing
Describe Your Challenge Schedule a CallNot ready to talk? Start with the Split-Domain Savings Assessment, $149.
Or call 866.790.4678
Start here
Split-Domain Savings Assessment — $149
We map your Microsoft 365 tenant mailbox by mailbox and tell you exactly which accounts need a full licence and which do not.
What you get back
- A mailbox-by-mailbox breakdown of which accounts genuinely need a full Microsoft 365 licence
- Your actual annual saving, calculated from your tenant rather than estimated
- A migration sequence showing what moves first and what stays
Turnaround about one week. If you go ahead with the work it recommends, the fee is credited against it in full.
Request the Split-Domain Savings Assessment See consulting ratesTell us about your split-domain routing needs
Describe your situation and we will look into it and get back to you.
Describe Your Challenge Schedule a Call
