Exchange Consulting & Emergency Support
Migration services, hybrid deployments, and 24/7 emergency response for enterprise email infrastructure.
Microsoft Exchange Experts Since 1997
With Exchange Server end-of-life approaching in October 2025 and subscription-based licensing changing the economics of on-premises deployments, now is the time to plan your migration strategy. EPC Group has completed over 5,200 Exchange migrations for enterprises of all sizes—from 50-user organizations to Fortune 500 companies with 100,000+ mailboxes.
Exchange Migration Services
Whether you're moving from on-premises Exchange to the cloud, consolidating tenants, or implementing a hybrid deployment, our certified engineers ensure a seamless transition.
On-Premises to Exchange Online
Complete migration from Exchange Server 2013/2016/2019 to Exchange Online with zero data loss and minimal downtime.
- Hybrid deployment configuration
- Cutover and staged migrations
- PST import and archive migration
- Public folder migration
Hybrid Exchange Deployments
Maintain both on-premises and cloud mailboxes with seamless integration, shared calendars, and unified address book.
- Hybrid Configuration Wizard setup
- OAuth authentication
- Free/busy sharing
- Cross-premises mail flow
Exchange Server Upgrades
Upgrade legacy Exchange environments to supported versions before migrating to the cloud.
- Exchange 2010/2013 to 2019 upgrades
- Database availability groups (DAG)
- SSL certificate management
- Cumulative update deployment
Tenant-to-Tenant Migration
Migrate mailboxes between Microsoft 365 tenants during M&A, divestitures, or organizational restructuring.
- Cross-tenant mailbox migration
- Calendar and contact preservation
- Distribution list migration
- Shared mailbox handling
Exchange Server Down? We're On It.
When Exchange fails, your business stops. Our US-based Microsoft Certified Engineers are available around the clock to diagnose and resolve critical Exchange issues—remotely or on-site.
Failed Cumulative Updates
15-minute responseExchange CU updates can fail catastrophically. Our engineers diagnose and resolve failed updates, corrupted installations, and rollback scenarios.
Email Flow Restoration
15-minute responseMail not flowing? We troubleshoot and restore mail flow issues including connector problems, DNS misconfigurations, and transport rule conflicts.
Database Recovery
30-minute responseRecover from database corruption, dismounted databases, and failed database availability groups. We restore service and recover lost data.
Security Incidents
Immediate responseRespond to Exchange security breaches, compromised accounts, and zero-day vulnerabilities like ProxyLogon and ProxyShell.
Disaster Recovery
30-minute responseComplete Exchange environment recovery from hardware failures, ransomware attacks, or catastrophic data loss scenarios.
Performance Issues
1-hour responseDiagnose and resolve slow performance, high CPU utilization, memory pressure, and storage bottlenecks affecting Exchange.
Microsoft Certified Engineers • 15-Minute Response • 100% US-Based
Exchange Versions We Support
From legacy Exchange 2010 to the latest Exchange Online, we've got you covered.
Exchange Server 2016/2019 End of Support: October 2025
Microsoft has announced that Exchange Server 2016 and 2019 will reach end of extended support in October 2025. Organizations still running on-premises Exchange must either migrate to Exchange Online or upgrade to Exchange Server SE (Subscription Edition)—which introduces subscription-based licensing with 10-20% cost increases.
Your Options:
- Migrate to Exchange Online – Move to Microsoft's cloud-hosted Exchange with predictable per-user pricing and no server maintenance.
- Hybrid Deployment – Keep some mailboxes on-premises while moving others to the cloud for a gradual transition.
- Upgrade to Exchange SE – Stay on-premises with the new subscription-based Exchange Server (requires Software Assurance).
Plan Your Exchange Migration Today
Don't wait until October 2025. Our Exchange migration assessments identify risks, estimate timelines, and create a roadmap for a successful transition to Exchange Online.
Frequently Asked Questions
What Microsoft 365 consulting services does EPC Group provide?
EPC Group provides M365 deployment, migration, governance, security configuration, Copilot readiness, compliance setup, and managed services. We specialize in enterprise M365 environments with 1,000+ users requiring HIPAA, SOC 2, or FedRAMP compliance.
How much does Microsoft 365 consulting cost?
M365 consulting ranges from $50K-$300K. A focused migration costs $50K-$100K, enterprise governance and security implementation costs $100K-$200K, and full platform optimization with Copilot costs $200K-$300K. EPC Group offers fixed-price engagements.
Can EPC Group help with Microsoft 365 compliance?
Yes. EPC Group configures Microsoft 365 compliance features including retention policies, DLP, sensitivity labels, eDiscovery, communication compliance, and information barriers. We map these controls to specific frameworks: HIPAA, SOC 2, FedRAMP, GDPR, and CCPA.
How does EPC Group handle M365 tenant-to-tenant migrations?
EPC Group manages complex tenant-to-tenant migrations for M&A scenarios including mailbox migration, SharePoint content, Teams channels, OneDrive data, security groups, and conditional access policies. We use BitTitan, ShareGate, and custom PowerShell for seamless coexistence during transition.