Real-World Use Case Scenario

Mergers and Acquisitions

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

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

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

What Experts Say

Get real user feedback from the ones who have been using the Kernel Email Migrator frequently.

clientsquote 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.

clientsquote 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.

clientsquote 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.

clientsquote 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.

clientsquote 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.

clientsquote 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.

clientsquote 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.

clientsquote 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.

clientsquote 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 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 offline emails to cloud

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

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

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

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

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

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

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

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

Emails
  • Email Headers: From, To, Subject, CC, date & time stamps, digital signatures, etc.
  • Body: Original message with links, images, and attachments.
Attachments

All file types are supported, including:

  • Audio
  • Video
  • Document
  • Compressed
Folders
  • Inbox
  • Sent
  • Drafts
  • Archive
  • Trash
  • All user-created folders & sub-folders
Contacts & Calendars

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.
Kernel Email Migrator Video

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

g2

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

stars
Software Suggest

Available on SoftwareSuggest, Kernel Email Migrator is recognized as a dependable choice for migrating email data across different email servers.Verified by Software Suggest

stars
Goodfirms

Kernel Email Migrator is listed on GoodFirms, where businesses can explore its capabilities for managing large-scale email migration needs.Verified by Goodfirms

stars

Kernel Email Migrator - Trial vs Full Version Comparison

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:

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

About Kernel Email Migrator SoftwareAbout Software

Version: 26.0

Release Date: Nov 2025

Update Date: June 2026

License Type: Home, Corporate & Technician

Supported VersionsVersion Support

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.

System RequirementsSystem Requirements

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

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