Office 365 to Office 365 Migration v1.0

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
100% Safe & Secure
30-Day Guarantee
50,000+ Users
24/7 Expert Support
MailsDaddy Office 365 to Office 365 Migration
🗄️
OFFICE-365 FILE
✉✉✉
📁
OFFICE-365 FILE
Scanning & processing mailbox…82%
2,450
Emails
310
Contacts
580
Calendars
Fast Conversion
100% Flawless
Bulk Conversion
User Friendly
50,000+
Satisfied users worldwide
100% Flawless
Data conversion accuracy
10+
Years of recovery innovation
4.9★ (2094 Reviews)
Verified Trustpilot rating

Certified & Highly Reviewed By Leading Software Authorities

Software Informer
Capterra
Soft32
Trustpilot
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Industry Recognition

Award-Winning & Recommended by Independent Editors

SoftpediaVerified Secure

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.

Verified Editorial Evaluation
FinancesOnlineTop Rated

Supreme Software & Verified Quality Award

Recognized for high user satisfaction, intuitive mailbox processing speed, and comprehensive format support for enterprise users.

Verified Editorial Evaluation
TrustRadiusIndustry Choice

Top Rated Migration Utility

Praised by IT administrators for reliably parsing corrupted and oversized OFFICE-365 files with minimal manual intervention.

Verified Editorial Evaluation
Core Capabilities

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.

Core Capability

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.

Feature Spotlights

Eye-Catching Features of MailsDaddy Office 365 to Office 365 Migration software

Deep Dive

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.
Deep Dive

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.
Deep Dive

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.
Deep Dive

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.
Total Mailbox Coverage

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

Email: The O365 tenant to tenant migration tool migrates emails a...

100% PRESERVED

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:

Incline Images
BCC
Subject
Date
CC
Message Body
Ensures 100% data integrity for Email.
How It Works

Process OFFICE-365 in 5 Simple Steps

No technical skills needed. Watch each step in the live software interface or click any step below.

Buy License Online
100% Clean & Safe
Step 1: Download & Launch the application
Step 01: Download & Launch the application — MailsDaddy Office 365 to Office 365 Migration
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Step 02: Preview file data — MailsDaddy Office 365 to Office 365 Migration
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Step 03: Select export options — MailsDaddy Office 365 to Office 365 Migration
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Step 04: Connect to Microsoft — MailsDaddy Office 365 to Office 365 Migration
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Step 05: Start migration — MailsDaddy Office 365 to Office 365 Migration
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Step 1 of 5

Looking for the complete user manual and working guide?

Explore comprehensive guides for standard PST conversion, search & filter migration, and Live Exchange Server export.

Read Working Guide
Product Specifications & Compatibility

Technical Specifications

Engineered for lightweight footprint, standalone execution, and broad enterprise compatibility for MailsDaddy Office 365 to Office 365 Migration.

Hardware & OS

System Requirements

Processor & RAM
2.4 GHz+ CPU2 GB Min RAM
Hard Disk Space
500 MB free hard drive space(Ultra-lightweight footprint)
Application Size
150-200MBFast digital download
Supported OS
Windows 11108.187VistaXP

Full support for Windows Server 2022, 2019, 2016, 2012, 2008 & 2003 (32/64-bit)

Ultra-Low RAM OverheadStandalone
Ecosystem

Platform Support

Supported Cloud Environments
Office 365Microsoft 365 Business/EnterpriseExchange OnlineHybrid
Output Compatibility

Office 365, Microsoft 365, Exchange Online

Architecture
32-bit (x86)64-bit (x64)
Outlook Prerequisite
Standalone — MS Outlook is NOT required for conversion
MS Outlook Not RequiredUniversal
Data & Formats

Supported Formats

Input Format

OFFICE-365 (Healthy, Corrupted, Orphaned, Large Archives)

Output Formats
Office 365
Attachment Handling

Retains 100% attachments, inline images, headers, and metadata

Mailbox Integrity

Preserves complete folder hierarchy, read/unread flags, and timestamps

100% Hierarchy KeptBit-Exact

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.

Meet Our Happy Clients

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.”

MC

Matthew Caulder

IT Administrator, United States
★★★★★

“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.”

LW

Lucas Wong

IT Administrator, Singapore
★★★★★

“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.”

GR

Giorgia Ricci

IT Administrator, Italy
Dedicated Technical Assistance

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

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.