SysTools Office 365 to Office 365 Migration Tool

o365 migration tool






Software Recommended by Office 365 Administrators to Migrate Office 365 Data from One Account to Another. This application has Successfully Exported 684 Million+ Emails, 10 Million+ Contacts, 16 Million+ Calendars, and 22 Million+ Documents from OneDrive.

(Average Rating 4.2 Based on 267 Reviews)
  • Migrate Emails, Contacts, Calendars, Task, Categories & Documents from OneDrive
  • Support Office 365 Shared Mailbox Migration from One Mailbox to Another
  • O365 Migration Software also migrates data from teams to teams securely
  • Tool simply migrates sites from online SharePoint to SharePoint
  • Option to Migrate Office 365 In-Place Archive Mailbox from Office 365 Accounts
  • Option to Import CSV File to Add Microsoft 365 Source & Destination Mailbox Info
  • Date Filter for Emails, Contacts, Task, Calendars, Documents to Migrate Selected Data
  • Facility to Migrate Entire or Selective User Mailboxes via Admin Account
  • Allows Users to Perform Microsoft Office 365 Tenant to Tenant Migration
  • Delta Migration Facility to Migrate Newly Arrived Items from Source Account
  • Account-Based Priority Migration Option to Set the Priority of Accounts to Migrate First
  • Provides Support for Users Mapping While Performing Microsoft 365 Migration
  • Advanced Utility to Migrate Groups and Group Members from O365 to O365
  • Data That is Not Migrated: Deleted Items Folder Can Not be Migrated by this Way
  • Office 365 to Office 365 Migration Tool Supports Various O365 Subscription Plans
  • Supports Windows 11 / 10 (64-bit) and Windows Server 2012 & 2016 Versions

Free Live Demo - SysTools Office 365 to Office 365 Migrator Fully Secured Download Version

SysTools Migration Services
Complete Office 365 Migration Solution

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Milestone Achieved by This O365 to O365 Migration Tool!


684 M+



10 M+



16 M+



22 M+




Email Size(TB)



Docs Size(TB)

Why Users Trust SysTools Microsoft 365 Migration

Recognized By Gartner

Secure Authorization with Office 365 via OAuth 2.0


Comprehensive Reports

ISO 9001:2015 and ISO 27001:2013 certified

24x7 Support

SysTools Office 365 to Office 365 Migration Awards

Highly Reputed Product to Transfer Office 365 User Mailboxes with 100% Precision

MVP Experience

Expert Opinion

Best Tool for Office 365 to Office 365 Migration

Efficient Solution to Migrate Entire Mailboxes From O365 to O365

Migrate O365 mailbox to O365 account

Why SysTools Office 365 Migrator?

To perform quick and easy Microsoft 365 migration without any data loss, one can opt for this Office 365 Mailbox to Office 365 Migrator. The software allows the user to perform multiple accounts migration concurrently.

  • One can easily synchronize contacts and information to make sure that co-workers can send/ receive emails and collaborate easily. Additionally, the utility offers the fastest possible Office 365 to Office 365 migration without affecting the communication process.
  • Security and Performance: The software does not store any credentials such as user-name and password in the software's interface or database while the migration process. Complete privacy of Office 365 user's is maintained by utility while the migration process. When it comes to performance factor, the software exhibits high-performance nature and also holds the integrity of Office 365 data.
  • SysTools provides efficient solution to perform Office 365 migration and also provides other numerous tools to perform SharePoint migration and OneDrive documents migration.

Select Categories

Office 365 Mailbox to Office 365 Migration

  • Mailbox Migration Scope: While migrating mailbox from one Office 365 to another, the tool allows the user to move Office 365 data including Emails, Contact, Calendars, Task, Categories, Documents in a trouble-free way.
  • Move Domains Between Microsoft Office 365 Tenants: Office 365 Migration tool makes the entire migration process an easy and efficient task. As the software provides a mail routing platform that routes mail automatically from source to destination.
  • Office 365 Migration Between Two Domains in the Same t1: The Office 365 mailbox to Office 365 migration software also offers a facility to migrate Office 365 emails, categories, tasks contacts, calendars, documents between two different domains.

Key Features of SysTools Office 365 to Office 365 Migrator

Best Software to Migrate Office 365 to Another Account / Mailboxes

office 365 migration

Office 365 to Office 365 Migration

The migration software allows you to transfer Office 365 mailbox to another account. It migrates emails, contacts, tasks, calendars and documents data from one Office 365 to another Office 365. The software will map and export data from one mailbox into any desirable mailbox of your choice on the other Office 365 account. The software will retain all Meta properties while exporting data from source to destination.

import csv to add details

Import CSV for Users Mapping

To create a mapping between source and destination user accounts, the tool provides a feature to add a CSV file. It contains a list of source user's and their destination user's account. Admin needs to click on the Add CSV file option to browse the generated CSV. To get a format of CSV to be uploaded, click on sample CSV option.

M365 Migration Tool

Migrate Office 365 Domain to Another t1

The application allows the user to move mailboxes from Office 365 domain to another t2. To implement the migration process, the user has to import a CSV file containing source & destination t2 user ID.

O365 to O365 migration same domain

O365 to O365 Migration in Same Domain

The tool allows the user to move data from one user mailbox to another in the same domain. Moreover, the software also maintains the integrity of data and security of the Office 365 data.

office 365 shared mailbox migration

Support Office 365 Shared Mailbox Migration

A Shared mailbox is one most important components of Office 365. Basically, it allows the users to view and send email from a common mailbox. Sometimes, the need arises to migrate Shared mailboxes in Microsoft 365. Thus, one can make use of the tool to migrate Shared mailboxes from one Office 365 account to another.

Office 365 User Archive Migration

Office 365 In-Place Archive Mailbox Migration

Office 365 to Office 365 migration application allows users to migrate Office 365 In-Place Archive mailbox emails between Office 365 t2. It offers additional flexibility by migrating Office 365 In-Place Archive emails of users' accounts in the approach of Office 365 migration. This way, users can easily migrate user's mailboxes as well as In-Place Archive mailboxes.

office 365 to office 365 migration different domain

Office 365 to Office 365 Migration Different Domain

With Office 365 migration tool, one can easily perform Office 365 mailboxes to Office 365 Migration of Different Domains.

  • Migration Between Two Domains in Different t1: The utility permits the user to migrate Office 365 data including emails, contacts, calendar, documents from one domain to another in two different t2.
  • Migration Between Two Domains in Same t1: The software is capable to migrate Office 365 data between two different domains in same t2 in a hassle-free way.

Re-Run Migration

Re-Run Migration Option

The software provides three modes of re-run migration:

  1. Retry Failed Items: This mode of migration will migrate items which were not migrated during the initial run.
  2. Re-Run Full Migration: It will run categories to counter any items that may have been skipped during the initial run. There will be no duplication of data.
  3. Delta Migration: this mode will run delta migration for the completed accounts. It will migrate all newly arrived data.

bulk office 365 migration

Office 365 Mailbox Migration in Bulk

With SysTools Office 365 Migration tool, one can easily transfer Office 365 data in bulk. Once you have logged in with admin account, software will migrate your users & their content to a new Office 365 account with no downtime and data loss during & after migration.

authenticate and export mailboxes

Authenticate & Export Mailboxes

As you add the source and destination mailboxes, Office 365 to Office 365 migration tool first maps the mailboxes. After mapping, it will authenticate each mailbox and proceed with the migrations. You can see the mailbox migration current status window after you click on the Export button.

generate summary report

Generate Summary Report

As the Office 365 migration begins; software will show you the complete details and count of mailboxes being converted from source to destination. You can view both current status report as well as final report which include details like: name of mailbox, mails count, contacts count, calendar count, documents count and the time consumed for the complete migration.

filter data

Filter Data According to Date Range

The Office 365 to Office 365 migration software moves data from one Office 365 to another Office 365 account & also allows you to filter data received within a specific date range. It is possible to export the emails, contacts, documents & calendars between "From" to "To" date range by setting the filter accordingly. Also it will be easy to migrate Office 365 mailbox to another with selective date range.

account based priority migration

Account-Based Priority Migration

With this option, you can set priority for accounts that you want to migrate first. The priority will be set by clicking on the star icon for the intended accounts. This feature, you can easily perform account-based migration between O365 to O365.

export selective mailbox item

Export Selective Mailbox Items

O365 mailbox to O365 migration utility provides you the option to export mails, contacts, calendars and documents. But if you need to migrate only selected categories, then you can check or uncheck category from the software workload selection. The software will only transfer selected items.

M365 to M365 Migration

Multiple Project Migration

It allows users to configure multiple projects to perform the migration. Enabling add multiple projects option displays multiple projects on the source and destination columns so that one can add them easily at once. This option helps to migrate various accounts simultaneously on a high-configuration machine.

Set Maximum Concurrent Users

Set Maximum Concurrent Users

This is another beneficial feature of Office 365 to Office 365 migration tool, that lets to set the maximum number of users that need to be migrated together in each project. In other words, The Number of Migrating Users = Concurrency Value* Number of Valid Accounts.

multiple project migration

Category Migration

The tool offers a category migration option to migrate labels of emails, calendars, and tasks of all users. When enabled, the tool will migrate labels for each selected workload category from source Office 365 account to destination Office 365 account.

Set Maximum Concurrent Users

Migrate Tasks (To-Do List)

The Task migration feature supports the migration of reminders, due dates, recurrence(repeat), custom tasks, attachments, and texts. The tool will check for all the task details of each selected user and migrate them to the destination account.

Download Office 365 Mailbox to Office 365 Migration Tool
Software Prerequisites to Move Domain / Mailbox from One Microsoft 365 to Another

Software Download

Size : 180 MB

Version : 6.7.0

MD5 : f2a5e980319064eabe150024f4535bb8

Linux Software Download

Size : 88.4 MB

Version : 5.5.0

MD5 : 121def6d992374101c96103b4ca5df4a

Trial Limitations

Demo version of Office 365 to Office 365 Migration Tool can transfer / move only two user accounts Fully with categories (Mails, Contacts, Tasks, Calendars, & Documents) of one Office 365 to other Office 365.

System Specifications

Hard Disk Space
Around 500 MB for installation & tool requires at least 20 GB of free space to store data

8 GB is recommended

Minimum 8 core Processor

Operating System

Windows 11 / 10 (64-bit), Windows 2012 / 2016 Server

For Linux: Ubuntu 18.04 LTS
Architecture: x86-64


  • Destination User(s) should be already created at destination Admin account.
  • 11
  • User Group(s) should be already created at destination account.
  • Valid Activation Code.
  • Register Application with Microsoft Azure Active Directory & Enable API Permission for Source & Destination Account as follows : Azure Cloud Console Project Creation Steps



Electronic Delivery


On-Demand Features

If you require below given on-demand features then we have one on-demand software called SysTools Office 365 Express Migrator. Know features of on-demand solution, go through the section below:
and request the tool by filling the form

Migration With User Credentials / Import CSV

The Office 365 to Office 365 mailbox migration tool supports O365 account data migration via user credentials. With this option (without impersonation), users can perform the selective mailboxes migration also. The user can manually enter mail-ID & their password on software or the user can directly import a CSV file that has the details of Source Office 365 ID, Source Office 365 Password, Destination Office 365 ID and destination Office 365 password.

Folder Mapping Option

The tool provides folder mapping option in which you can create a mapping between two folders to migrate data. You have to mention folder names of the source & destination account. The tool will migrate data between those respective folder automatically.

Office 365 Migration Without Project Creation

SysTools Office 365 Express Migrator tool supports migration of Office 365 users data without creating the console project. You just need to login to Office 365 admin account via software to accomplish the migration task.

Pause & Resume Export Process

The O365 migration tool provides an option to pause the process and resume whenever needed. The migration will resume from the point where it was pause. This way the tool ensures to import/ transfer email domain to Office 365 without interruption.

Export Folders via Folder List

This migration application allows the users to move folders by just entering the list of folders (as inbox, sent, etc). This allows the users to perform the selective migration only for those folders which they need to transfer.

Request Features

Request the tool by filling the form

Order Now Office 365 to Office 365 Migration Tool
Overview of Tool Features – Comparison of DEMO and FULL Version
Features DEMO Version FULL Version
O365 Mailbox to O365 Mailbox Migration
Import CSV to Add Details for User Mapping
Apply Date Filters on Microsoft Data
Authenticate & Export Mailboxes
Category & Task Migration
Generate Summary Report
Windows 10 (64-bit), Windows Server 2012 / 2016
Support Ubuntu 18.04 LTS
Complete Microsoft 365 to Microsoft 365 Migration Two User Accounts
Cost FREE $25
(5 User)

Frequently Asked Questions

User's Common Queries Related to Office 365 to Office 365 Migration Tool & their Answers
How can I perform migration using this Office 365 email to Office 365 migration tool?

Get a basic overview of how the software works:

  • Step 1: Download and Run Office 365 to Office 365 Migrator
  • Step 2: Choose Categories and Enable Date-Filter (if required)
  • Step 3: Enter Source and Destination Office 365 Details
  • Step 4: Fetch User Accounts and Perform Mailbox Mapping
  • Step 5: Initiate Process Using Start Migration Button

Yes, our O365 to O365 migration tool is efficient enough to move domain from one Office 365 account to another.

In case of shared mailboxes, you need to make sure that you "Ignore O365 license validation" by right-clicking on that particular mailbox. (You only have to do this for shared mailboxes). If you won't perform this step, you won't be able to validate permissions successfully.
Yes, it is possible to use the Office 365 migration tool on any machine having Windows OS version 10 or below installed in it to migrate Office 365 mailbox to Office 365 account.
Yes, Our migration software can easily move/transfer Exchange Online to Exchange Online of multiple mailboxes within as well as across the Office 365 domains.
Yes, You can use this tool to migrate any mailboxes of Office 365 into any user mailbox or into any mailbox. It even lets Office 365 migrate calendar to another account.
This software support migration of In-Place Archive mailbox emails. However, it is unable to migrate deleted Items Folders using this utility.
Office 365 family subscription plan does not include exchange online services. Therefore, SysTools Office 365 Migration Tool does not support migration from Microsoft 365 family subscription, as the tool requires the exchange online services for respective migration.

What Client Say

See Why Users Believe on SysTools Office 365 to Office 365 Migrator