MailsDaddy Office 365 to Office 365 Migration
Best Office 365 to Office 365 Migration tool to easily migrate data from One Office 365 accounts to another Exchange online mailboxes. Easily Migrate mailboxes within the same or different office 365 domains. This quick office 365 migration tool automatically assigns the required impersonation rights.
- Migrate data from one Microsoft 365 tenant to other Microsoft 365 Tenant.
- Auto assigns the required impersonation rights to migrate mailbox to Office 365.
- Incremental migration option to skip the duplicate items.
- High Data Transfer Speed to perform quick migration
- CSV Mapping option to Map Source Office 365 mailbox to target office 365 mailbox.
- Migrate all or selected mailboxes from Office 365 to Office 365.
- Move Shared, Public and Archive Mailboxes to Office 365.
- Import Office 365 [Source Mailbox] to In-Place Archive / Primary mailbox of target O365 accounts.
- Date Filter option to upload select data from Office 365 to Office 365 accounts.
- Supports Cutover, Hybrid and Staged Migration
Certified & Highly Reviewed By Leading Software Authorities
Award-Winning & Recommended by Independent Editors
100% Clean & Secure Certification
MailsDaddy Office 365 to Office 365 Migration provides verified security and fast performance with zero malware or adware detected during rigorous laboratory testing.
Supreme Software & Verified Quality Award
Recognized for high user satisfaction, intuitive mailbox processing speed, and comprehensive format support for enterprise users.
Top Rated Migration Utility
Praised by IT administrators for reliably parsing corrupted and oversized OFFICE-365 files with minimal manual intervention.
Features of the Office 365 to Office 365 Migration
Enterprise-grade recovery and conversion, packed into a simple desktop app — no technical expertise or Exchange server required.
Office 365 to Office 365 Migration
Easily migrate all mailbox data including Emails, Calendars, Notes, Tasks, Public Folders and Shared Folders etc. from One Office 365 tenants to others. With using this application users can easily perform Cross Tenant Mailbox migration.
Incremental Office 365 Migration
Perform incremental office 365 migration from source office 365 mailbox to target office 365 mailbox without duplicate content. If you Re-Run the migration tool, it will only migrate new items to office 365 accounts.
No Office 365 Throttling Limits/Issues
The Application is designed in such a way that it handles the Microsoft 365 throttling issue while migrating the large scale data from Source Office 365 mailboxes to Destination Office 365 Mailboxes.
CSV Mapping Option
Easily map and migrate office 365 mailboxes to of one tenant to other tenant using the CSV mapping option. Just create a CSV file with Source Mailbox and Target Mailbox information and the tool will automatically migrate the data from one tenant to another.
Migrate Selected Mailbox
This Cross Tenant Mailbox Migration Tool also has an option to migrate Selected as well as all Office 365 mailboxes from one domain to another. Just map the mailboxes uses using CSV file that you want to move to Office 365 environment.
Supports Batch Migration
Perform Hybrid or Hosted Migration of One Office 365 tenant to another domain in bulk. Just login to Source and Destination accounts, provide CSV mapping file and then application will handle everything. It will also generate the migration reports.
No PowerShell Scripts Required
This is a simple GUI based tool, you don't need to use any PowerShell command or script to perform Office 365 to Office 365 Migration. Just follow the step by step simple guide and quickly complete your Office 365 migration project.
Fast & Secure Migration Process
The Office 365 to Office 365 Migration Tool provides Fast, Secure and Reliable migration of Office 365 mailboxes. This Office 365 Migration software does not alter or delete the data form Office 365 accounts. It migrate the data as it is with no data loss.
Supports Migration between Same Domains
With using the application users can migrate the data between the different mailboxes of same domain. Each and every information of a mailbox like emails, calendars, tasks, notes, contacts etc. will be migrated to the selected account.
Migrate Data to In-Place Archive
This Microsoft Office 365 to O365 Migration Tool has option to migrate the data into the Primary as well as In-Place archive of the destination mailbox. So choose the destination folder as per your requirement and complete your O365 to O365 Migration.
Migrate O365 Public Folder to O365
Along with Emails, Tasks, Calendars, Notes and contacts etc., the software can also easily migrate Public Folders as well as shared mailboxes from Office 365 to Office 365 environment.
Perform Staged Migration
Quickly and easily perform staged migration of one office 365 tenant to another office 365 tenant. The tool has no mailbox size limitation that means you can transfer as many data as you want from one mailbox to another mailbox.
Supports Cutover Migration
The application supports cutover migration of Office 365 mailboxes. Migrate all data of an Office 365 tenant to another tenant at once and perform cutover migration. It migrates all information of office 365 mailboxes form one domain to other.
Apply Date Filter Option
Date Filter option of the tool allows importing selected data from Office 365 mailboxes to other office 365 mailbox. Just choose the date range and perform Office 365 to Office 365 Migration with no data loss
Supports all Windows OS
This application is compatible with all editions of Windows Operating System including Windows 11. Just install this best Office 365 to Office 365 Migration Tool in you windows operating system and easily perform the O365 to O365 Migration.
Eye-Catching Features of MailsDaddy Office 365 to Office 365 Migration software
O365 Tenant to Tenant Migration
MailsDaddy Office 365 Migration Tool is packed with great features that make it easy to do cross-tenant mailbox migration in a few steps. Any user who wants to migrate Office 365 email server domain to another domain can use the solution.
- Direct cloud mailbox migration into Office 365 or Live Exchange Server.
- Zero downtime migration preserving full folder trees and meta properties.
- Supports primary mailboxes, archive mailboxes, and custom folder trees.
Hassle-free Office 365 Migration
MailsDaddy O365 migration tool works with migration guidelines in mind so that the user can get secure results. In such a situation, the entire migration is executed without any failure or interruption, it is tested beforehand.
- O365 migration tool works with migration guidelines in mind so that the user can get secure results.
- In such a situation, the entire migration is executed without any failure or interruption, it is tested beforehand.
- Engineered specifically for optimal hassle-free office 365 migration workflows.
Migrate Public folder & Shared Mailbox in Tenant
This tool can also performs the public folder migration from the tenant with perfect accuracy. There is no need to run PowerShell cmdlet commands to complete Office 365 Tenant migration or waste a lot of money. This is a complete solution in itself which has been extensively tested on public folder and shared mailbox.
- Direct migration support for Office 365 Shared Mailboxes and Public Folders.
- Retains original read/unread statuses and subfolder structures.
- Ensures uninterrupted user access during cloud tenant migration.
Reliable and Accurate Office 365 Migration Tool
After cross tenant mailbox migration, our customers believe that it is completely reliable and accurate conversion software. You can also test the freeware tenant migration version and migrate some data between it. The full version allows for unlimited tenants' migration, unlocking full features.
- After cross tenant mailbox migration, our customers believe that it is completely reliable and accurate conversion software.
- You can also test the freeware tenant migration version and migrate some data between it.
- The full version allows for unlimited tenants' migration, unlocking full features.
The O365 to M365 Migration Tool Migrates Everything!
Every folder hierarchy, email header, embedded attachment, contact attribute, and calendar recurrence is processed with 100% bit-exact fidelity.
Email: The O365 tenant to tenant migration tool migrates emails a...
Email: The O365 tenant to tenant migration tool migrates emails along with all it's Meta properties from one Office 365 account to another Office 365. It converts everything including:
Supported Elements & Formats:
Process OFFICE-365 in 5 Simple Steps
No technical skills needed. Watch each step in the live software interface or click any step below.





Looking for the complete user manual and working guide?
Explore comprehensive guides for standard PST conversion, search & filter migration, and Live Exchange Server export.
Technical Specifications
Engineered for lightweight footprint, standalone execution, and broad enterprise compatibility for MailsDaddy Office 365 to Office 365 Migration.
System Requirements
Full support for Windows Server 2022, 2019, 2016, 2012, 2008 & 2003 (32/64-bit)
Platform Support
Office 365, Microsoft 365, Exchange Online
Supported Formats
OFFICE-365 (Healthy, Corrupted, Orphaned, Large Archives)
Retains 100% attachments, inline images, headers, and metadata
Preserves complete folder hierarchy, read/unread flags, and timestamps
100% Offline & Private
Zero cloud uploads or telemetry. Processing happens strictly within your local machine.
No Outlook Required
Completely standalone engine. Processes OFFICE-365 files without requiring host email clients.
No File Size Limits
Tested on massive 50GB, 100GB, and 500GB+ enterprise mailboxes with zero crash.
Full Windows Support
Native execution across Windows 11 down to Windows XP & all Windows Server editions.
Trusted by IT teams and professionals worldwide
Explore our client testimonials to see why users trust and recommend our solutions.
“It is a really good and simple tool for migrating office 365 mailboxes, In-place archive, and Public folder. The product is easy to setup and use.”
Matthew Caulder
“Excellent M365 Tenant to Tenant Migration tool for mail, contact and calendar data migrations, overall great support and a lot of product innovation happening recently.”
Lucas Wong
“MailsDaddy Office 365 migration tool works very well. The documentation and videos provide step-by-step instructions. It has an easy to use interface. A great time saver for 50+ workstation sites.”
Giorgia Ricci
Need Help with Office 365 to Office 365 Migration?
Our dedicated 24/7 technical team is available to assist you with any migration or recovery challenge.
The free demo version lets you preview all items and export up to 20 emails per folder.
Frequently Asked Questions
Find clear answers regarding the Office 365 to Office 365 Migration conversion process, file compatibility, and recovery features.
Yes, the tool has option to migrate Archive as well as primary mailboxes of Office 365 environment.
Start migrating with Office 365 to Office 365 Migration today.
Download the free trial and inspect your recovered mailbox in minutes.