Tenant to Tenant Migration
Exchange Online Migration
Looking to migrate your Microsoft 365 Exchange mailbox data effortlessly?
With Apps4.Pro, start your Office 365 mailbox migration in just a few clicks. Enjoy a fast, secure, and simplified migration process-delivering hassle-free results in minutes with zero data loss guaranteed.
Mailboxes
Calendar
Contact
Tasks
15-days free trial & No credit card required.

Source

Tenant A
Target

Tenant B

Matthew Rob

IT Manager

4.9
We were nervous about migrating 670+ mailboxes especially the big ones 😟, but Apps4.Pro Exchange Migration handled them smoothly, including shared mailboxes. Best of all, archives moved seamlessly to target archive mailboxes


4.5

TRUSTED BY 15K+ ORGANIZATIONS
From Startups To Global Enterprises


Join 15K+ Happy Customers

How it Works
Migration in Just 3 Simple Steps!
Plan smarter, migrate seamlessly and validate with confidence.
Trust every step of your migration journey.
Migrate everything. Worry about nothing.
Pre-Migration Analysis
Gain clarity by generating a free inventory report before you migrate. Instantly assess readiness, minimize risks, and ensure a smooth migration.
Get Your Free Inventory Report Now! 🡢


Automated Migration
Seamlessly execute migrations without user intervention, saving time and handling large-scale, complex environments with ease.
Start Your Free Migration Today! 🡢
Post Migration Validation
Data verification after migration ensures all data is accurately transferred and guarantees users can access and use it smoothly.
Start Your Free Migration Today! 🡢


Tenant to Tenant Exchange Online Mailbox Migration
Ensure a flawless transition of your Exchange Online Mailbox from the source tenant to the target tenant with an exact replica of all critical data.
Maintain uninterrupted service and effortlessly resume Business as Usual activities after migration.
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Migrate All Microsoft 365 Mailboxes with Confidence:
- User Mailbox
- Shared Mailbox
- Archived Mailbox
- Group Mailbox

User Mailbox

Shared Mailbox

Archived Mailbox

Group Mailbox
Most Migrated
Highly Used

Trusted by IT
Why Enterprises Choose Us for Office 365 Migration?
Apps4.Pro helps IT teams streamline workflows, enhance productivity, and manage Microsoft 365 projects efficiently with seamless integration.
Microsoft Solution Partner
Apps4.Pro is a verified Microsoft Solutions Partner for Modern Work, helping organizations succeed in Microsoft 365 tenant migrations since 2011.
ISO Certified
Our ISO 27001 & 27701 certifications ensure security and privacy, trusted worldwide by enterprises like Teradyne, J&J, Atos, and more.

User Friendly
Apps4.Pro reduces complexity with an intuitive interface that supports planning, monitoring, and completing Microsoft 365 migrations confidently.

Fast and scalable
From small projects to full enterprise moves, Apps4.Pro supports every Microsoft 365 workload with consistent, reliable performance.


User Mailbox
Migrate User Mailboxes Across Tenants
The merges of cloud Exchange user mailboxes from one Office 365 tenant to another with precision.

Data Coverage: Mails, attachments, server-side rules, permissions, contacts, calendars, and tasks

Flexibility: Apps4.Pro offers advanced Category filters to selectively migrate emails, calendars, contacts, and tasks.

Guidance: Step-by-step instructions, refer to our Exchange Online Mailbox Migration Guide.
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Shared Mailbox Migration Between Office 365 Tenants
Shared mailboxes allow a specific group of people to manage and send emails from a common mailbox.

Apps4.Pro Tool Support: Migrate shared mailboxes between Microsoft 365 tenants seamlessly.

Data coverage: It involves migrating the entire shared mailbox, including its emails, calendar items, contacts, and permissions.

Flexible Options: This tool also supports migrating shared mailboxes to M365 user mailboxes between tenants.
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Archive Mailbox Migration
In-Place Archive provides additional storage space for Exchange mailboxes. If this feature is enabled in your organization, some of your data might reside in archive mailboxes.

Apps4.Pro Tool Support – Seamlessly migrate archive mailboxes in Exchange Online from one tenant to another.

Data coverage – Move archive emails, folders, and files.
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Migrate Office 365 Group Mailbox to Another Tenant
Effortlessly migrate O365 group mailboxes from one domain to another with just a few clicks.

Data Coverage: Migrate emails, calendars, folders, and files securely

Progress Tracking: Live migration tracking

Task Status: Detailed reporting for monitoring task status
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What’s Migrated
Apps4.Pro offers a flawless Exchange migration flooded with the key features highlighted as below.
- User Mailbox
- Calendar
- Tasks
- Public Folder with Permissions
- Contacts
- Server-side Rules
Explore the scope of mailbox migration to understand every data element we support.


Testimonials
What Our Clients Say About Us?
Real stories from IT leaders who rely on Apps4.Pro for seamless 
Microsoft 365 migration.

Key Features
Powerful Features to Simplify Your Exchange Migration
Apps4.Pro provides advanced features to manage complex mailbox migrations and ensure a smooth tenant to tenant transition.

Custom Timeframe Migration
Migrate emails within a specific period (last 1 or 3 months) or set your own custom date range for greater control.
Mailbox Mapping
Automatically map mailboxes or use custom mapping for accurate alignment between tenants.

Comprehensive Mailbox Migration
Supports all types of mailbox transfers across tenants for a complete and reliable migration experience.

Custom Timeframe Migration
Migrate emails within a specific period (last 1 or 3 months) or set your own custom date range for greater control.
Mailbox Mapping
Automatically map mailboxes or use custom mapping for accurate alignment between tenants.

Comprehensive Mailbox Migration
Supports all types of mailbox transfers across tenants for a complete and reliable migration experience.

Incremental Migration
Migrate only newly added or modified data after the initial migration to save time and avoid duplication.

Post-Migration Reports
Get detailed reports with granular insights to verify success & ensure zero data loss.
FAQ
Frequently Asked Questions
Need quick help? Check our FAQs.
Still have questions? Chat with our 24/7 AI support agent.
Yes, a 15-days limited trial is available. To request a trial, please contact us at sales@apps4.pro and our onboarding specialist will assist you with the setup and customization of your trial.
Yes, our professional services team is available 24/7 to handle the migration process on your behalf. We operate under a signed NDA and perform each migration in a dedicated Azure virtual machine assigned to the specific customer.
Apps4.Pro is an ISO-certified organization, ensuring secure and compliant data handling.
Migrating a shared mailbox to Office 365 Mailbox follows a process similar to migrating a user mailbox. This includes transferring emails, calendar events, contacts, and mailbox rules, ensuring no data loss and minimal downtime
Apps4.Pro enables the smooth transfer of Exchange Online archive mailbox data, ensuring no data loss, minimal disruption, and complete preservation of emails, folder structures, and user access.
Yes, Apps4.Pro Migration Manager offers multiple mapping options, including automatic mapping and mapping via CSV. These features allow you to efficiently map source mailboxes to destination mailboxes and transfer public folders or mailboxes.
Yes, Apps4.Pro Migration Manager allows you to selectively migrate data such as emails, calendars, contacts, tasks, and rules. This flexibility enables you to tailor the migration process to meet your specific requirements.
Chat with AI
Still Have a Question?
Our AI Smart Assistant is available 24/7 to provide instant answers to your questions. Start a chat anytime to get the assistance you need.
Mailbox Migration Made Simple – Start with Apps4.Pro!
Fast, Secure, and Stress-Free Every Step of the Way.
15-days free trial & No credit card required.



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