ExchangeSavvy Mailbox Connector: Exchange to Microsoft 365 Migration
Complex Exchange migrations shouldn’t slow you down. With ExchangeSavvy’s Mailbox Connector, you can move, extract, and consolidate mailboxes across any Exchange environment on-premises, hybrid, or Microsoft 365 without scripts, downtime, or data loss.
Engineered for Complex Environments
Designed for Exchange professionals managing hybrid, multi-tenant, or large-scale migrations with total oversight at every stage.
Oversized Mailboxes
Migrate mailboxes, no matter the size
Flexible Destinations and Scenarios
Move mailboxes to Microsoft 365, PST, SharePoint, Teams, or on-premises file shares with precision and transparency.
Guaranteed Integrity and Compliance
Every migration is logged, validated, and compliant with organizational retention rules and audit requirements.
Transform Your Microsoft 365 Performance
What the Mailbox Connector Is
The ExchangeSavvy Mailbox Connector is a unified migration and extraction engine for Microsoft Exchange mailboxes. It enables administrators to move – active, archive, and recoverable item folders between environments securely, efficiently, and without dependency on hybrid migration tools. It supports both on-premises-to-Exchange Online and Exchange Online-to-on-premises migrations, and allows extraction or migration of Recoverable Items Folders for comprehensive data retention and compliance coverage.
You define the scope. ExchangeSavvy handles the transfer.
Our platform supports:
- Exchange On-Premises ↔ Exchange Online
- Exchange Online ↔ Exchange On-Premises
- Exchange Online Tenant-to-Tenant Migrations
- Exchange → PST or File Share
- Exchange → SharePoint Online or Teams Channel
Advantages Over Default Migration Methods
- Apply date-based retention during migration to move only the required data.
- Split large mailbox folders based on the number of items, folder size, or both.
- Automatically route active mailbox content to archive mailboxes.
- Inline folder inclusion and exclusion control with no external scripting.
- Migrate mailboxes beyond standard Microsoft limits.
- Eliminate hybrid-only migration dependencies.
Key Features That Redefine Mailbox Migration
Powerful tools designed to optimize your Microsoft 365 environment
Granular Filtering and Selective Migration
Apply date range, folder exclusions, and message class filters to move only the data that you choose.
Full Delta Sync Support
Migrate in stages or run follow-up syncs to automatically capture new, modified, or deleted items. Keep both environments aligned without rework.
Connection Throttling Detection and Mediation
Mailbox Connector automatically monitors and adapts to throttling, ensuring continuous performance even under server constraints.
Large Mailbox Folder Splitting
Don’t be held hostage by large mailboxes again. Thresholds for splitting can be customized by the number of items or total folder size, allowing flexible migration control across high-volume mailboxes.
Why Choose This Service
Real business outcomes that drive growth and efficiency
Based on analysis of 50+ deployments
Reduces mailbox load times
Enterprise-grade tracking and audit trails
How It Works
Simple 3-step process to transform your Microsoft 365 efficiency
Connect and Configure
Connect your source and destination Exchange environments using secure, API-based authentication using Entra Applications. Define filters, date ranges, and destination rules for your migration.
Execute and Monitor
Migrations run automatically with real-time progress tracking. Multiple logging options are available.
Verify and Complete
After migration, integrity checks confirm that all mailbox items, folder hierarchies, and permissions match your source data, ensuring a clean, auditable handoff.
Pricing and Plan Options
Professional
$
250.00
Base Price (Starter) for
up to first 25 Mailboxes USD/Year
- No Mailbox Size Caps
- Migrate Active Mailbox
- Migrate Archive Mailbox
- Unlimited Migrations/Extractions
- Detect and Split Oversized Mailbox Folders
- Maintenance, Updates, and Support
Professional
$
450.00
Base Price (Starter) for
up to first 50 Mailboxes USD/Year
- Includes everything in Base Price (Starter)
Professional
$
4.00
Add-On
USD/Year per Mailbox
- Includes everything in Base Price (Starter)
What Our Customers Say
Join thousands of satisfied customers who trust Exchange Savvy with their most critical data.
No downtime, total confidence.
We had a large number of Public Folders to move from Exchange 2010 to 2016. ExchangeSavvy let us migrate live with no downtime or disruptions. We seeded data over time and completed the project confidently. Great product and great support.
Vince
Team Lead Systems Administration at Colliers Project Leaders
Simple, reliable, and stress-free.
ExchangeSavvy’s GUI-driven migration worked seamlessly, even during our busiest period. The process was clear, reversible, and well-supported. A positive experience from start to finish.
Tyler
Monticello, The Thomas Jefferson Foundation
A superior product that saved us time.
ExchangeSavvy’s Public Folder Connector let us decommission old servers ahead of schedule. The interface was intuitive and support was top-tier. We evaluated other tools, but none matched ExchangeSavvy’s functionality and responsiveness.
Tom
Systems Administrator at a Large Financial Institution
Flawless execution and five-star support.
ExchangeSavvy’s team guided us through every step with clarity and confidence. The ability to roll back if needed, plus their responsive support, made the migration easy. We’d gladly recommend them.
Rohit
Senior Systems Engineer at Visiting Nurse Service of New York
Fast, simple, and on budget.
Microsoft’s migration process was overly complex, so we turned to ExchangeSavvy. The documentation and guidance were excellent and we finished ahead of schedule. A complicated task made easy.
Roger
Business Systems Analyst at Rodda’s
Lightweight tool, powerful results.
Our folder mapping exceeded Microsoft’s limits, but ExchangeSavvy handled it easily. It kept folders accessible, supported delta sync, and provided full control. The support was excellent and we’d recommend it anytime.
Parvinder
Technical Manager at Colt
ExchangeSavvy FAQs
Get answers to the most common questions about our data protection platform.
QWhat kind of logging or audit details do I get?
Each migrated item includes tracking that shows the date and time of migration, the source environment ID, and the destination ID, all of which can be exported to a report at any time.
QDoes migration require downtime for end users?
Our solution is designed with end users in mind. Each time you run a migration sync, it’s a complete 100% point-in-time sync, including the syncing of new items, changes, modified messages, and even deletions. This allows customers to choose precisely when to switch a user to their new mailbox with no noticeable downtime.
QCan permissions and folder structure be preserved during migration?
Yes, all folder structure and permissions are maintained throughout the migration.
QCan I migrate mailboxes to non-Exchange destinations?
Yes, you can migrate mailbox data to PSTs, File Shares, SharePoint Online, and Teams & Groups sites.
QCan your solution help with mailboxes that are too large to migrate to Exchange Online?
Definitely! Our solution can detect and split mailbox folders that are too large, based on item count, size, or both. You can split the data in the same mailbox, move all or some of it to an archive mailbox, or move it to a separate mailbox. Never be stuck with an unmovable on-premises mailbox again!
Need to Migrate Mailboxes at Scale Without the Chaos?
ExchangeSavvy Mailbox Connector gives you the control and visibility that large-scale migrations demand. From filtering and delta sync to throttling mediation and large-mailbox handling, every phase is automated, monitored, and verifiable.