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“Simplicity is the highlight of the tool. It is designed to provide instant Cloud migrations without wasting any time.” Managing Director KernelApps

Know what you can migrate with Kernel Office 365 Migration

Mailboxes Mailbox folders - Inbox, Sent items, Drafts, Outbox, Deleted Items, Contacts, Tasks, Journal Entries, etc.

Items - Email messages, Journal entries, Appointments, Contacts, Distribution Lists, Attachments, Tasks, etc.

Public Folders Folders - Mail-enabled folders, Messages, Calendar, Journal, Notes, Templates, Custom Attributes, etc.

Data - Email messages, Journal entries, Appointments, Contacts, Distribution Lists, Attachments, Tasks, etc.

Meta & Heirarchy Metadata - IFrom, To, Subject, Date, Time, Cc, Bcc, etc.

Maintains mailbox hierarchy as it is.

Delegate full access rights to source mailboxes for migration.

Office 365 Tenant to Tenant Migration Mailboxes, Public Folders, & Office 365 Groups

Consolidation of cloud assets after mergers & acquisitions

Offers mapping between source & destination mailboxes.

Archive Mailboxes Archive Mailbox folders- Inbox, sent items, Drafts, Outbox, Deleted Items, Contacts, Tasks, Journal Entries, etc.

Data - Email messages, Journal entries, Appointments, Contacts, Distribution Lists, Attachments, Tasks, etc.

Migrates Office 365 Groups & more Office 365 Groups, Shared Mailboxes, etc.

Multiple mailboxes under an administrator account.

Even if email address is different from Mailbox Login ID.

Native Solutions v/s Kernel Office 365 Migration

What makes the tool different
from others?

Quick and easy migration Allows you to complete the migration in four steps – Add Source, Add Destination, Map, & Migrate.

Direct mapping Maps the source mailboxes with target mailboxes manually or using a CSV file.

Migration between tenants Performs fast migration between two Office 365 tenants without any loss of data.

Delegate Impersonation Rights Allows you to provide impersonation rights to user mailboxes for bulk migration.

Filters data before migration Migrate specific items with filters like Date Range, Item Type, Selection/Exclusion options, etc.

Migration Report Complete migration report after migration, depicting the status of each mailbox item.

Salient Features

Migration of Office 365 to data to another Office 365 tenant is now flawless, swift, and instant using the Kernel Office 365 Migration. It accesses all the mailboxes of one tenant and migrates them to another Office 365 tenant.

Plan your Migration with Pre-Migration Analysis

Migrate between two Office 365 tenants You can use the tool to perform a migration between two Office 365 tenants by inputting the source and destination account credentials and mapping the source & destination mailboxes directly. It supports migration of primary mailbox, archive mailbox, and public folder.

Migrate Everything with Zero Impact and Downtime

Migrate between any Office 365 plans There are multiple plans for Office 365, like Business, Business Premium, and Business Essentials. Our tool supports each plan, and you can complete the migration between any two plans efficiently.

On-premises Exchange to Office 365 Migration

Migrate Office 365 mailboxes & more Before starting the migration, you can select/deselect mailbox folders and apply a set of filters like, select item type, include/exclude date, skip previously migrated items, etc. And the migration is completed with the required data only.

Office 365 to Office 365 Tenant Migration

Migrate unlimited Office 365 mailboxes The tool is capable of handling any kind of migration with mailboxes of any size and any number of folders. There is a sample CSV file within the software which you can download and use for bulk migration. It also helps you to achieve a quicker migration.

Migrate Exchange public folders to Office 365

Quick mapping between Source & Destination After adding the source & destination, you can map the source and destination mailboxes with each other. There is a simple drop-down list which shows the available mailboxes. You can select any destination mailbox/public folder/archive mailbox against a source mailbox/public folder/archive mailbox.

Migration Rollback

Free Demo version for evaluation To learn the functional aspects of Kernel Office 365 Migration, you can download the trial version and run a full migration. It will complete the migration but with only 10 items per folder. Later, you can buy the full version from the website.

Follow the below steps:
  1. Run the tool and click the Add button in the Select Source section.
  2. Provide the Office 365 credentials of the account. Click the Add button.
  3. Click the Add button in the Select Destination section.
  4. Provide the credentials of the destination account. Click the Add button.
  5. Map the source and destination mailboxes.
  6. Provide appropriate filters and start the migration.
  7. The migration will start and will show the status of each folder.
  8. Get the complete report of migration.
Yes, all attachments, including the PDF files, will be migrated.
No. The data will remain in the source mailbox as the tool only copies the data to the destination
Apart from Office 365, the tool performs the migration of Exchange and hosted Exchange data. It conducts various migrations like Exchange to Office 365, Exchange to Exchange, and Office 365 to Exchange, for hosted and on-premises deployments.
To automate the migration of multiple mailboxes, you should use a CSV file and enlist the mailboxes in it. It will save you from inputting the credentials of Office 365 mailboxes manually. The process is quite easier and quicker
The tool migrates mailbox items to their specific folders, like emails will go to emails, contacts will go to contacts, and notes will go to notes. However, there is a unique feature in the Filter page where you can choose an option to save all data hierarchy into a new folder.
The too provides a sample CSV file on the Home page which you can download, and it has following columns which you need to fulfill -
  • Source Office 365 or Exchange Mailbox
  • Source Login Account(administrator@onmicrosoft.com)
  • Source Password
  • Source Server name (retain the default value for Office 365)
  • Destination Office 365 or Exchange Mailbox
  • Destination Login Account (administrator@onmicrosoft.com)
  • Destination Password
  • Destination Server name (Leave it blank for Office 365)
There is a special option on the filter page where you can check the option to exclude the empty folders and the tool will skip all the empty folder automatically.
Mapping is an important activity. If you do not map the mailboxes, then the tool will show error. You have to map the mailboxes and perform the migration again.

Processor Intel® Pentium 4 Class Processor (or higher)

Memory8 GB RAM (Recommended)

Hard Disk 1 GB free storage space for software installation

Exchange Server 2019, 2016, 2013, 2010, 2007, 2003, 2000

Windows Operating System (both 32-bit and 64-bit editions)Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2003, Windows Vista, Windows Server 2008, Windows server 2008 R2, Windows Server 2012, Windows Server 2012 R2

Virtual environments Microsoft Virtual PC, VMware ESXi Server, VMware ESX Server, Hyper-V Server 2012 R2, Hyper-V Server 2012, Hyper-V Server 2008 R2, Hyper-V Server 2008

Office 365 PrerequisitesRequires Internet Connectivity, NET Framework 3.5 SP1 or later, Windows PowerShell 2.0

Electronic Yes

Version 20.9

User Reviews

Kernel Office 365 Migration

(4.9 / 5) 435 Reviews

Easily migrate Office 365 mailboxes to Office 365. Marvelous solution, Indeed!!!


Brilliant performance. I am surprised to see such efficient moving of data within minutes. Kudos!


After using the demo version, I was sure that this is the tool that I need to migrate my Office 365 mailboxes.

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