Exchange Server to Microsoft 365 Migration
Seamless Exchange Server to Microsoft 365 migrations. Zero data loss guaranteed with hybrid deployment expertise and proven methodology.
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Migrating from:
Exchange Server to Microsoft 365
Public Folders
Org-wide public folder hierarchies
Choose Your Exchange Migration Approach
Select the right migration strategy based on your organization size, timeline, and technical requirements
Hybrid Migration
Best for organizations needing long-term coexistence
TYPICAL TIMELINE
2-6 weeks
Plus coexistence period
BEST FOR
150+ users
Large organizations
DOWNTIME
Zero
Gradual migration
Key Benefits:
- Migrate users in batches
- Keep on-premises Exchange running
- Free/busy calendar sharing
- Cross-premises mailbox moves
Ideal For:
- Large organizations (150+ users)
- Phased migration approach
- Long-term coexistence needed
- Multiple locations/departments
Why Exchange Migrations Fail Without Experts
Common Exchange migration challenges that cause project failures
Exchange Data Loss & Corruption
Mailbox items disappear. Public folder corruption. Calendar appointments lost. Shared mailboxes incomplete. Years of Exchange data gone.
We fix it: 100% data integrity verification. Zero data loss in 300+ Exchange migrations
Extended Exchange Downtime
Migration stuck during cutover. Users locked out for days. Exchange servers failing. Business email completely down during migration.
We fix it: Zero-downtime hybrid migration. Weekend cutover available
Public Folder Complexity
Public folders won't migrate. Permissions broken. Nested folder structure lost. Applications depending on public folders fail.
We fix it: Expert public folder migration with full permission preservation
Exchange Version Compatibility
Exchange 2010 incompatible. Outdated protocols not supported. Hybrid configuration fails. Can't coexist with Microsoft 365.
We fix it: Support for all Exchange versions: 2010, 2013, 2016, 2019, 2022
Hybrid Configuration Failure
Hybrid wizard fails. OAuth authentication broken. Free/busy not working. Mail routing loops. Coexistence completely broken.
We fix it: Expert hybrid Exchange setup and troubleshooting
On-Premises Decommission Issues
Can't decommission Exchange. Services still dependent. Legacy applications breaking. Incomplete migration blocks server removal.
We fix it: Complete migration validation and safe Exchange server decommissioning
Complete Exchange Server Migration Services
Expert Exchange to Microsoft 365 migration services for all Exchange Server versions
Mailbox Migration
Complete mailbox migration from Exchange Server to Exchange Online. All versions supported (2010, 2013, 2016, 2019, 2022) with zero data loss guarantee.
- User mailboxes & archives
- Shared mailboxes
- Resource mailboxes (rooms/equipment)
- Distribution groups
- Calendar permissions & delegates
Public Folder Migration
Expert public folder migration to Microsoft 365 with full permission preservation. Handle complex hierarchies and application dependencies.
- All public folder hierarchies
- Mail-enabled public folders
- Permission preservation
- Application dependency mapping
- Post-migration validation
Hybrid Exchange Setup
Professional hybrid Exchange configuration for seamless coexistence between on-premises Exchange and Microsoft 365.
- Hybrid Configuration Wizard
- OAuth authentication setup
- Free/busy calendar sharing
- Secure mail routing
- Directory synchronization
Exchange Decommissioning
Safe Exchange Server decommissioning after successful migration. Verify all services migrated and handle legacy dependencies.
- Migration validation checks
- Service dependency analysis
- Safe server removal
- Legacy application remediation
- Final cutover support
Choose the Right Exchange Migration Strategy
Different Exchange environments require different migration approaches. We'll recommend the best strategy for your organization.
Cutover Migration
Complete migration in one weekend. All mailboxes move at once. Microsoft's recommended approach for 90% of organizations.
Best For:
- • Most businesses (under 300 users)
- • Simple to complex Exchange environments
- • Organizations ready for quick change
- • Cost-effective migration
Duration
1-3 days
Downtime
Zero
Complexity
Low
On-Prem Servers
Decommission
Best Choice: Fast, reliable, and cost-effective. Recommended by Microsoft for most organizations under 300 users.
Staged Migration
Move users in batches over several weeks. For very large organizations only.
Best For:
- • Large organizations (3000+ users only)
- • Exchange 2010/2013/2016/2019
- • Complex multi-site deployments
- • Extended migration timeline acceptable
Duration
2-4 weeks
Downtime
Zero
Complexity
Medium
On-Prem Servers
Decommission
Note: Higher cost and longer duration. Only recommended for very large environments.
Hybrid Coexistence
Permanent dual infrastructure. Keep both Exchange on-premises and Microsoft 365 running simultaneously.
Best For:
- • Organizations keeping Exchange on-premises permanently
- • Regulatory/compliance requirements for on-premises email
- • Complex Exchange environments with legacy dependencies
- • No plans to fully migrate to cloud
Duration
4-12 weeks
Downtime
Zero
Complexity
High
On-Prem Servers
Keep Active
Important: This is NOT a migration but a permanent coexistence setup. Requires Azure AD Connect and ongoing maintenance.
Built for Microsoft 365 Migrations
We understand what organizations need. That's why 500+ companies trust us for their Microsoft 365 migrations.
Zero Data Loss Guarantee
Pre-migration backup, real-time monitoring during transfer, and post-migration validation. Every email, attachment, and calendar entry verified before we declare success.
"Migrated 250 mailboxes over the weekend. Monday morning verification showed 100% data integrity. Not a single email lost." - Jennifer Martinez, IT Director
Microsoft Gold Partner
100% Microsoft certified migration team with direct Microsoft escalation channels. Less than 1% of Microsoft partners worldwide hold Gold Partner status.
"Medha's team resolved a complex Exchange hybrid issue in 4 hours using direct Microsoft support. Other consultants quoted 5-7 days." - Robert Chen, VP IT
2-4 Hours Average Downtime
Weekend and after-hours migrations minimize business impact. Most users never notice the switch. Incremental sync captures new emails during migration.
Full User Training Included
Comprehensive training for your team on Microsoft 365 features. Live sessions, recorded videos, and documentation. Users productive from day one.
"Training was excellent. Support tickets dropped 60% compared to our previous Exchange 2007 migration with another provider." - Sarah Mitchell, IT Manager
500+
Migrations Completed
150K+
Mailboxes Migrated
0
Data Loss Incidents
Why Organizations Choose Microsoft 365
Real cost savings and productivity improvements from migrating to Microsoft 365
Infrastructure Cost Savings
No server hardware, power, cooling, or on-premises maintenance
Productivity Increase
Teams collaboration, anywhere access, real-time co-authoring
Uptime SLA
Microsoft guarantees 99.9% uptime with financial backing
Reduced Security Incidents
Advanced threat protection, DLP, and compliance tools included
Before vs. After Migration
Before (On-Premises)
High Infrastructure Costs
$50K+ for servers, backup, maintenance annually
Limited Mobile Access
VPN required, slow performance, security risks
Storage Limitations
2GB mailbox limits, constant archiving needed
Version Control Issues
Email attachments, "final_v2_FINAL.docx" chaos
Manual Security Updates
Patching windows, downtime, vulnerabilities
After (Microsoft 365)
Predictable Monthly Costs
$12-$35/user/month, everything included
Work From Anywhere
Full desktop experience on any device, instant sync
100GB Mailboxes + 1TB Storage
Never delete emails, OneDrive for all files
Real-Time Collaboration
Co-author documents, Teams meetings, SharePoint sites
Automatic Security Updates
Microsoft manages all updates, always current
3-6 months
Average ROI timeline
$15K-$50K
Typical annual savings (100 users)
2-4 weeks
Full migration & training completed
How Microsoft 365 Migration Works
From first contact to full completion—exactly what happens during your migration
Discovery & Planning
1-3 days
We analyze your environment and create a detailed migration roadmap with risk mitigation strategies.
- •Inventory current email system (mailbox count, sizes, versions)
- •Assess network bandwidth and connectivity requirements
- •Identify dependencies (third-party apps, integrations, workflows)
Environment Preparation
3-5 days
Microsoft 365 tenant setup and configuration before we begin the actual data migration.
- •Provision Microsoft 365 tenant and licenses
- •Configure domains, DNS, and mail routing
- •Set up Azure AD Connect and hybrid configuration (if needed)
Pilot Migration
1-2 days
Test migration with 10-20 users to validate the process before full rollout.
Production Migration
1-5 days (typical)
Execute full migration in scheduled batches with 24/7 monitoring. Most migrations happen over weekends.
- •Migrate users in batches (typically 50-100 per batch)
- •Real-time monitoring of migration progress
- •Incremental sync to capture new emails
- •Update DNS MX records at cutover point
Post-Migration Support
30 days included
User training, issue resolution, and environment optimization to ensure smooth transition.
Total Migration Timeline
Small migrations (1-25 users): 1-2 weeks. Medium (25-100 users): 2-4 weeks. Enterprise (100+ users): 4-12 weeks.
Medha Cloud vs. Other Migration Options
DIY migrations? Hiring freelancer? Using automated tools? Here's how we compare:
| Feature | DIY Migration | Freelance Consultant | Medha Cloud |
|---|---|---|---|
| Migration Success Rate | 60-70% — High failure rate | 80-85% — Varies by experience | 99.8% — 500+ successful migrations |
| Data Loss Protection | No guarantee — Common issue | Partial — Best effort | Zero data loss — 100% verified |
| Average Downtime | 2-5 days | 8-24 hours | 2-4 hours — Weekend migrations |
| Microsoft Certified Team | No — Self-taught | Maybe — Varies | Yes — All engineers certified |
| Post-Migration Support | None | 1-2 weeks | 30 days — Included free |
| User Training Included | No | Rarely — Extra cost | Yes — Live sessions + videos |
| Rollback Plan | No | Maybe | Yes — Documented & tested |
| Microsoft Gold Partner | No | Rarely | Yes — Direct MS support |
Get Your Custom Migration Quote
Transparent per-user pricing with no hidden fees. Use our calculator to get an instant quote based on your exact needs.
Calculate Your Migration Cost
Select your platform, user count, and migration options to get an instant quote. Takes less than 60 seconds.
What's Included in Every Migration
Regardless of your migration size, every project includes our comprehensive migration process and guarantees.
Zero Data Loss Guarantee
Pre-migration backup, real-time monitoring, and post-migration verification of every email and file.
Microsoft Certified Team
100% Microsoft certified engineers with direct Microsoft escalation channels.
Minimal Downtime
Weekend and after-hours migrations with 2-4 hours average downtime.
User Training Included
Comprehensive training on Microsoft 365 features - live sessions, videos, and documentation.
Post-Migration Support
30 days of included support to resolve any issues and optimize your environment.
Security Configuration
Security baseline setup including MFA, DLP, and compliance configuration.
💯 Our Promise
Zero data loss • No hidden fees • Fixed timeline commitments • 24/7 migration support
Exchange Migration Success Stories
Real results from organizations that trusted Medha Cloud with their Exchange Server to Microsoft 365 migration.
"Migrated 250 mailboxes from Exchange 2010 to Microsoft 365 over a weekend. Monday morning, everyone logged in like nothing happened. Zero data loss, zero downtime during business hours. Best investment we made."
Jennifer Martinez
IT Director, Regional Medical Center
250 users • Exchange 2010 → M365
"Migrated from Exchange 2013 to Microsoft 365. 180 users with complex public folders and 10 years of archives. Hybrid setup was flawless. Public folders migrated perfectly. Zero disruption to production."
Robert Chen
VP of IT, Advanced Manufacturing Inc.
180 users • Exchange 2013 → M365
Exchange Migration FAQs
Get answers to common questions about Exchange Server to Microsoft 365 migrations
Timeline depends on Exchange version, mailbox count, and complexity. Small migrations (1-25 users) typically complete in 1-2 weeks. Medium migrations (25-100 users) take 2-4 weeks. Enterprise migrations (100+ users) range from 4-12 weeks. We set up hybrid coexistence first, then migrate in batches during weekends.
Zero downtime with hybrid migration. We configure hybrid Exchange so your on-premises and cloud mailboxes coexist. Users continue working normally during migration. Final cutover happens during a scheduled maintenance window (typically 2-4 hours). Business operations continue uninterrupted.
We guarantee zero data loss. Every Exchange migration includes pre-migration Exchange health checks, incremental synchronization with delta sync, and post-migration validation of all items. We verify mailboxes, public folders, distribution groups, and calendar permissions. In 300+ Exchange migrations, zero data loss incidents.
We support all Exchange Server versions: Exchange 2010 (including SP3), Exchange 2013, Exchange 2016, Exchange 2019, and Exchange 2022. We also migrate from Exchange 2007 with special handling. Each version requires specific hybrid configuration steps which our team handles expertly.
Yes, public folder migration is our specialty. We migrate all public folder hierarchies, mail-enabled public folders, permissions and access rights, nested folder structures, and application dependencies. Public folders typically migrate separately after mailboxes. We handle even the most complex public folder environments.
Yes, we regularly migrate Exchange mailboxes over 100GB. We use incremental synchronization to migrate large mailboxes efficiently. For mailboxes over 50GB, we implement delta sync to reduce final cutover time. Archive mailboxes and PST files are also migrated to Exchange Online Archiving.
After successful migration, we help you safely decommission Exchange servers. We verify all services migrated (mailboxes, public folders, mail flow), check for application dependencies, provide documented decommission steps, and maintain minimal hybrid setup if needed. Complete server removal typically happens 30-90 days post-migration.
Yes, all migration packages include user training. Starter package includes 1 basic training session. Business package includes comprehensive training (live sessions, recorded videos, documentation). Enterprise package includes personalized training for power users and administrators. We cover Outlook, Teams, OneDrive, SharePoint, and mobile apps.
All packages include comprehensive post-migration support: 7 days (Starter), 14 days (Business), 30 days (Enterprise). Support includes hybrid Exchange troubleshooting, Outlook profile reconfiguration, mobile device setup, mail flow verification, and Exchange server decommission assistance. Extended support available if needed.
Exchange migration pricing depends on mailbox count, Exchange version, and public folder complexity. Typical pricing: $2,500 (1-25 users), $5,500 (25-100 users), $9,500 (100-300 users). Per-user pricing: $15/mailbox + $500 setup fee. Public folders: $500 per hierarchy. All prices include zero data loss guarantee and post-migration support.
Ready to Migrate to Microsoft 365?
24/7 migration support from Microsoft Certified Engineers. Zero data loss guarantee. Get your migration quote today.
24-Hr Quote
Fast migration assessment
Microsoft Gold Partner
100% certified team
Zero Data Loss
500+ successful migrations
Or speak with our migration team directly