Real-World Use Case Scenario

Mergers and Acquisitions
When organizations merge, they face the challenge of consolidating email environments. Our tool allows IT teams to securely migrate emails to another organization's email server.

Business Restructuring
Reorganize email communication for teams or departments. Shift all the members to a brand-new email environment while keeping the years-old emails and nested folder structure.

Hybrid Work Environment Transitions
Transfer emails of distributed remote and in-office employees from different IMAP-hosted accounts to a single workspace cloud platform with our email migration tool.
Supported Email Migration Routes
| Migration Type | Source | Destination |
|---|---|---|
| Offline file migration | PST, OST, EML, MSG | Microsoft 365 |
| Cloud-to-cloud | Gmail, Zoho, GoDaddy, Yahoo, any IMAP | Microsoft 365, Gmail, Zoho, any IMAP |
| IMAP-to-IMAP | Any IMAP server | Any IMAP server |
What Experts Say
Get real user feedback from the ones who have been using the Kernel Email Migrator frequently.
David Chen, IT Administrator
We had a mountain of old PSTs and OSTs from various users, and the thought of manually moving them to Office 365 was a nightmare. Kernel Email Migrator made it incredibly straightforward. The ability to run multiple jobs simultaneously was a game-changer. Seriously impressed with how smoothly everything went.
Janie Lorent, MSP
I am constantly changing email clients based on the client's needs and was looking for an all-in-one Kernel Email Migrator. This Best Email Migration tool can easily solve all my migration problems. I can move from any source email server to any destination. The tool even lets me import offline shared email files to Office 365.
Mark Johnson, Senior Systems Engineer
We needed to migrate several legacy mailboxes into our new Office 365 setup. We wanted a top-quality tool that can handle large email data transfers quickly. Kernel Email Migrator handled the situation well. Not only was it incredibly fast, but every single email and attachment landed exactly where it should. Zero data loss, zero headaches.
Jessica Lee, Business Consultant
Had a minor query about a specific old PST file, and the support team was outstanding. Quick response, clear guidance, and genuinely helpful. Getting good support from a knowledgeable and responsive support team is rare these days. The tool itself is fantastic, but the support truly elevated the experience for me.
Robert Garcia, CIO
I work in a large-scale enterprise and need a solution that could handle hundreds of mailboxes from various sources. A friend of mine who has used Kernel’s other fabulous tools guided me to try their Email Migration Tool. The ability to effortlessly migrate emails from multiple sources without any error is amazing. It easily handled my origination's large volume of data exactly like I needed.
Emily White, Small Business Owner
After trying a couple of other migration tools that promised a lot but delivered little, I was skeptical. But this one... it just works. Be it offline email files or cloud-to-cloud email migration – it handles them all with ease. No more manual exports, headaches, or complicated workarounds. This is now our go-to solution.
Alex Kim, Compliance Officer
Beyond the smooth migration, I really appreciate the detailed reports generated after each job. It gives me the confidence to verify that everything was transferred correctly. This saved me a lot of time when validating the data in the destination. A very professional and transparent tool.
Chris Davies, Operations Director
Investing in this Email Migrator was one of the best decisions we made for our IT infrastructure. The simple user-interface makes the entire email migration journey easy. It only took us a couple of minutes to configure and start the email transfer. The tool securely and accurately migrates emails with no data loss and even preserves the original metadata.
Jack Ryan, CEO
I really liked how the tool lets the user control the entire migration. I can choose which file/folder to transfer and what to leave behind. Additionally, the option to schedule the migration as per my convenience is also unique. This awesome feature helped me to achieve a fast email migration with minimal downtime.
Experience the Top-Rated Features of Kernel Email Migrator
Have a look at these core capabilities of Kernel Email Migration tool for seamless migration.
Universal Email Migrator
The tool has the capability to migrate emails between multiple email servers, like Gmail, Zoho, GoDaddy, or any IMAP server. Moreover, transfer emails directly from any IMAP-enabled source to Microsoft 365.Migrate Local Files to Cloud
Transfers PST & OST to Office 365 with all mailbox items. As well as migrates bulk MSG or EML to Office 365. Our email migration solution can migrate emails directly from local storage to the Microsoft 365.Bulk Email Migration
This Windows Email Migration tool is designed to migrate multiple mailboxes (primary or shared). Users can easily create and run multiple cross-platform or domain-to-domain email migration jobs.Schedule Email Migration
The software allows users to schedule email migration jobs during off-peak hours to avoid server throttling issues. Users can configure multiple migration jobs to run automatically on a daily, weekly, or monthly basis.Migration Summary
Kernel Email Migrator auto-generates a summary report for each migration job, which includes every folder in the mailbox along with the migrated and failed item counts. Simply review migration results in the tool or export the report as a CSV file for auditing and record-keeping.Automatic User Mapping
With its advanced algorithm, mailboxes that are identical in the source and destination will be mapped automatically. If required, the user can remap the auto-mapped mailboxes. Moreover, mapping can be done either manually or with a CSV file for the remaining unmapped users.Incremental Email Migration
Our email migration tool includes an incremental migration option to skip already migrated emails when a user re-runs a migration job. It allows users to retry failed migrations without the risk of creating duplicate emails at the destination.Selective Email Migration
Kernel Email Migration Software lets you customize your email migration with built-in filters. Include or exclude specific folders, set a date range, and skip empty or deleted item folders to migrate only the required emails.Free Email Migration Software
Download the trial version of the email migration tool and migrate emails for free.
- For Offline File Migration: Move the OST / PST file with 50 items per folder, and for EML / MSG, move up to 50 files for free.
- For Gmail, Zoho, and Other IMAP Email Migration: Migrate 100 items per folder for every user.
Supported Email Data For Migration
- Email Headers: From, To, Subject, CC, date & time stamps, digital signatures, etc.
- Body: Original message with links, images, and attachments.
All file types are supported, including:
- Audio
- Video
- Document
- Compressed
- Inbox
- Sent
- Drafts
- Archive
- Trash
- All user-created folders & sub-folders
From the OST and PST file, transfer:
- Contacts: Name, Email Address, Contact Number, Organization, Address, etc.
- Calendar: Appointments, Events, Meetings, Reminders, Alerts, Attachments.
How Kernel Email Migrator Works
Follow the steps below or watch the video tutorial to see how Kernel email migration tool transfers mailboxes in bulk across different platforms.
- Step 1: Download Kernel Email Migrator, then install and run it.
- Step 2: Create migration Project, select type, and enter Job name.
- Step 3: Configure the source and the destination email servers.
- Step 4: Map the source mailboxes to the destination mailboxes.
- Step 5: Apply filters and configure migration settings.
- Step 6: Schedule the email migration for later or begin it immediately.
Why Choose Our Email Migration Tool?
Still wondering why trust the Kernel Email Migrator. See what makes this tool different.
Data Security
Your data remains secure on your local machine. Our tool processes emails locally and does not store any email or other mailbox items.No Size Limitation
Capable to migrate bulk and large size mailboxes to different IMAP servers at once. Our email migration tool has no data transfer capping.Secure Microsoft 365 Connection
Provides an option to add M365 account using modern authentication. Transfer emails to Microsoft 365 with Graph API (recommended by MS for production-grade mailbox migration).Preserve Mailbox Folder Hierarchy
Our email migration tool preserves the folder hierarchy, including the subfolders, in the destination. Get all your mailboxes with default & user-created folders.Live Migration Status
Get real-time updates of mailbox transfer from the email migrator dashboard. You can easily track the migration of each folder from the source to the destination, along with the number of items processed and filtered.Manage Email Migration
The email migration solution provides dedicated buttons to start, stop, pause, or refresh any mail migration job. Also, helpful in scenarios when managing large-scale batch migration jobs.Recommended by Trusted Software Review Platforms
Kernel Email Migration Tool is suggested by G2, which makes it a trusted choice for small and large enterprises looking for a secure email migration solution. Verified by G2
Available on SoftwareSuggest, Kernel Email Migrator is recognized as a dependable choice for migrating email data across different email servers.Verified by Software Suggest
Kernel Email Migrator is listed on GoodFirms, where businesses can explore its capabilities for managing large-scale email migration needs.Verified by Goodfirms
Kernel Email Migrator - Trial vs Full Version Comparison
| Software Features | Trial Version |
Full Version |
|---|---|---|
| Migrate PST / OST / MSG / EML | ||
| Cloud and IMAP Mailbox Transfer | ||
| Pause/Resume Migration | ||
| Selective Data Migration | ||
| Migration Report | ||
| Skip Duplicate Data | ||
| Bulk Migration | ||
| Schedule Migration | ||
| Email Migration Limit for MSG / EML | 50 Files | As Per Purchased License |
| Email Migration Limit for PST / OST | 50 Items Per Folder | As Per Purchased License |
| Gmail, Zoho, GoDaddy etc., IMAP Server Limit | 100 Items Per Folder | As Per Purchased License |
| Tool License Validity | 15 Days | As Per Purchased License |
| Free Download | Purchase Now |
End-to-End Email Migration Solution for All Major Platforms
Our Email Migration Tool allows you to execute an effortless migration between any email servers. Explore a few major migration routes that our tool covers:
OST to Office 365 Migration
PST to Office 365 Migration
EML to Office 365 Migration
MSG to Office 365 Migration
Gmail to Office 365 Migration
Zoho to Office 365 Migration
Gmail to Zoho Migration
Zoho to Gmail Migration
GoDaddy to Office 365 Migration
IMAP to IMAP Migration
IMAP to Office 365 Migration
WebMail to Office 365 Migration
People Also Ask - FAQs
What is Kernel Email Migrator?
Kernel Email Migrator is a tool that migrates emails, attachments, metadata, and folder hierarchy between email servers, mailboxes, and cloud platforms. It supports batch migration for individual users or large enterprises. This software is designed to migrate multiple mailboxes between different sources and destinations without losing formatting.
How much time does the tool need to migrate emails?
The migration time depends on multiple factors, like mailbox size, number of emails with large attachments, nested folder structure, and email server throttling limitations. To know how long the email migration will take for your project, contact our support team. They will assist you with an exact timeline based on email data and business requirements.
What happens if migration is interrupted?
The tool saves every migration job. You can select the failed job and rerun it. Do not worry about data duplication. If the incremental migration option was selected while creating the job, all the previously migrated items will be skipped.
Can I migrate large volumes of data from multiple mailboxes simultaneously?
Yes. The Kernel Email Migrator is designed for scalability. Migrate large mailboxes from multiple offline files or different online email servers in a single operation.
Can the tool migrate emails from Gmail to Microsoft 365?
Yes. This email migration tool is capable of migrating emails from Gmail to Microsoft 365.
Can I perform an email migration between any two email servers that support IMAP?
Yes. Transfer emails (with attachments) and folders between any two IMAP-enabled accounts. The tool also supports bi-directional migration. The user can migrate from IMAP-A to IMAP-B or from IMAP-B to IMAP-A.
Is my data safe during the email migration process?
Yes, 100%. Our tool does not delete a single bit of your data from the source and destination servers. During a migration, emails go directly from source to destination. No email or data item is stored on our server.
Will there be downtime during the email migration?
No. The users can continue using the source and destination email accounts as usual without any interruption.
Can mailbox permissions be migrated?
Mailbox permissions must be recreated on the destination manually by the user.
How do I verify migrated mailbox data?
The user can view the migration summary of the job. It will display all the migrated and failed folders with the email item count.
Can I schedule email migration?
Yes. You can definitely schedule your migration job. Kernel Email Migration Tool offers an advanced feature that allows users to schedule migration jobs for any day and at any time.
Kernel Email Migrator Software Prerequisites & Recommendations
Version: 26.0
Release Date: Nov 2025
Update Date: June 2026
License Type: Home, Corporate & Technician
Office 365 (Microsoft 365): All plans, including Office 365 (Microsoft 365) Enterprise E1, E3, E5 & Exchange Online Plan 1, 2, Microsoft 365 Business Premium, Office 365 A1, Office 365 A3, Office 365 A5, Office 365 F1, and Office 365 Business Essentials.
IMAP Email Server: All IMAP servers, including Gmail, Microsoft Exchange Server, Zimbra, Dovecot, Courier Mail, Outlook/Hotmail, Yahoo Mail, Proton Mail, Bluehost, GMX Mail, Yandex Mail, FastMail, Mail.ru, Apple Mail Server, iCloud Mail, AOL Mail, Cyrus IMAP, MailEnable, hMailServer, Mail-in-a-Box, Apache James, Citadel, Kolab Groupware, MDaemon Email Server, Modoboa, Zentyal, Zoho Mail, Company IMAP Account, etc.
Hard Disk: At least 500 MB for installation and 5 GB of free space for storing data and logs.
RAM: Minimum 8 GB recommended
Processor: Intel compatible (x64-based processor), minimum 4 core recommended
Operating System: Windows 11, 10, 8.1, 8, 7 & Windows Server 2025, 2022, 2019, 2016, 2012, 2008 R2, 2008
Prerequisites: Requires Internet Connectivity, .NET Framework 4.6 or later, Microsoft Visual C++ 2015-2022 Redistributable