We develop ourProducts to meet your needs & solve your problems.

“Excited to help Exchange users in data recovery. Complements to developers of our team.”

Managing Director KernelApps

Salient Features

Efficient Exchange data recovery is facilitated with its advanced features.

EDB to PST Conversion without Outlook

EDB to PST Conversion without Outlook Export offline EDB mailboxes to PST easily using this tool. And for this, you do not need MS Outlook on your system. This tool gives option to restore EDB file to a new/existing PST file without disturbing the existing mailbox hierarchy. To overcome the issues of large-sized files, you can split PST file after by any size and restore it in smaller sizes. Read more...

Deleted Mailboxes Recovery

Deleted Mailboxes Recovery Exchange recovery tool can recover full mailboxes from corrupt Exchange databases (offline EDB/STM files) and from Exchange backups, after the event of Exchange Server failure. The software repairs EDB file and restores permanently deleted Mailboxes, folders, messages, file attachments, contacts, calendars etc even in the severe case of Exchange Server crash.

Office 365 to Office 365 Migration

Office 365 to Office 365 Migration An easy and hassle-free approach to migrate from one Office 365 account mailboxes to another Office 365 mailbox. The EDB recovery tool also exports Office 365 data to PST, live Exchange Server mailboxes without affecting the mailbox users. It allows smooth migration of single/ multiple mailbox(es), archived mailboxes, and public folders.

Live Exchange to Live Exchange Migration

Live Exchange to Live Exchange Migration Move your user's data from old versions of Exchange to newer Exchange versions (including 2013, 2016, 2019) with zero impact and data loss issues, using Kernel for Exchange Recovery tool. It is an effortless way to migrate your thousands of mailboxes from one Exchange Server to another Exchange Server.

Easy to Use Export Options

Easy to Use Export Options The EDB recovery tool allows easy export of the data by using Copy – Paste and Drag – Drop functions. This feature gives users great benefit, it ensures that total items are copied at the designated folder of the matching mailbox. Drag-and-drop feature which does not need any technical expertise any user can easily export selective messages from source folder to the destination folder using this feature. There are many export options integrated in the interface such as Export mailboxes, Export messages, etc. It also has a special feature to extract the attachments from specific emails or from all the emails of a mailbox folder.

Search Specific Items within Mailboxes

Search Specific Items within Mailboxes Advanced search feature allows finding specific email or items within multiple mailboxes. The Exchange Server recovery tool has an extensive search function that reaches to the bottom of database layer to render the accurate search. You can find messages containing specific phrases/words, search within attachments (attachment body, type, size), Date range, and more. Also, you can save custom searches to load the same search every time, without re-creating them repeatedly.

Migration from IMAP Servers

Migration from IMAP Servers Migration from IMAP servers (like Gmail, Yahoo, Hotmail, and GroupWise) to PST file, live Exchange Server, Office 365 mailbox, This solution gives easy and user-friendly options and filters for exporting the data from IMAP servers to live Exchange mailboxes and office 365.

Restore Mailboxes from Backup File

Restore Mailboxes from Backup File Kernel for Exchange recovery tool has an inbuilt backup extractor that facilitates direct data recovery from Exchange backups. It remarkably cut-downs the efforts involved in lengthy traditional process to restore entire backup setting up a recovery server.

Detailed Reports & Operation Logs History

Detailed Reports & Operation Logs History Generate reports to analyze the mailbox data flow based on following parameters – senders, receivers, attachments, dates, and messages. Operation logs are the easiest way to track the status and details of all the operations performed till date. Exchange recovery software allows to view all your log details based on the selected date and time of the operation logs.

Mailbox Creation

Mailbox Creation Administrators can create the folders and mailboxes to destination Exchange Server. It even allows having full access to destination mailboxes – such as create, delete or rename any folder; create a new mailbox in Exchange Server etc. Various operations can also be performed like delete any item, ‘reply’ or ‘forward’ any email message from the connected Outlook profile.

Preview of Exchange Data Before Migration

Preview of Exchange Data Before Migration Kernel for Exchange recovery tool has a preview pane to read the information of the selected item or message from source & destination lists. You can read full message (along with attachments), contacts, etc. before saving.

Assign Full Access Rights

Assign Full Access Rights to Office 365 User Mailboxes The tool allows to delegating full access rights to Office 365 user mailboxes. This can be done from the interface of the tool (no need to login to Exchange admin center).

Public Folders Recovery

Public Folders Recovery The recovery tool offers recovery of public folder data from corrupt and damaged EDB files. It also restores lost or deleted public folder items (from both Office 365 and Exchange). And you can save specific items from public folders to the required destination.

Supports Unicode EDB Recovery

Supports Unicode EDB Recovery The software supports Unicode Exchange database files for recovery. Exchange database files with Unicode characters are recovered swiftly by this software and are saved to different destinations including Unicode PST files.

When to use

Kernel for Exchange Server Recovery

Ways to export Exchange Public Folders to Outlook PST

MS Outlook users can export Exchange public folders to PST using the Import/Export feature of Outlook. But for the large-scale export or migration of public folders, Exchange administrators need complex PowerShell scripts. But Kernel for Exchange Server provides an easy way for them to export Exchange public folders to PST, live Exchange, or Office 365.

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Troubleshooting dirty shutdown error using eseutil utility

Eseutil is a simple utility to fix the Exchange dirty shut down error and other minor issues in the Exchange environment. But this utility often fails with complex Exchange server errors and EDB file corruption. So, Exchange administrators need Kernel for Exchange Server Recovery, a professional solution, to deal with severe Exchange database corruption issues.

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How to reduce Exchange EDB file size in simple way?

For the optimum performance of Exchange Server, it is essential to have the Exchange database sizes in check. Exchange administrators can follow various good practices to keep the database sizes under control. However, if all these practices fail and the Exchange database files become corrupt, they need a professional solution – Kernel for Exchange Server.

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What to look for in an
Exchange recovery solution?

Kernel works for all these requirements
Recover EDB file of any Exchange Server Version
Recover and Migrate all type of data
Recover Exchange Server 2019 database
The new version of Exchange recovery tool is capable of recovering data even from the recently introduced Exchange Server 2019 databases. It thoroughly scans the Exchange database to retrieve the inaccessible data.
Recover emails to EML
Recovered emails can be saved to EML format with this recovery software. Among the many saving options, choose Save as EML to save the retrieved Exchange emails to this format.
Recover Exchange Server 2016 database
The software recovers data from Exchange Server 2016 database also. The data integrity is well-maintained while retrieving Exchange 2016 data to the desired destinations.
Recover Archive/Shared mailboxes
The Exchange Recovery software recovers the data archived by the mailbox users as well as the shared mailboxes. It efficiently restores archive mailbox items and saves them securely to the desired destination.
Recover Exchange Server 2013 database
EDB files from the most used Exchange version (Exchange 2013) can be easily recovered and moved to the desired location with this tool. The tool guarantees complete recovery and ensures data integrity during the process.
Recover Public Folder data
This tool is capable of recovering public folders from offline public folder database files or mailbox database files depending on the Exchange Server version.
Recover Exchange Server 2010 database
For Exchange 2010 users, EDB corruption would not be an issue as the tool supports the recovery of Exchange 2010 mailboxes without any hassles. Then users can decide to save the data to multiple formats and destinations.
Recover emails to MSG
Recovered Exchange emails can be saved to the MSG file format as well. This export of Exchange emails to MSG file format is a one-step, direct process.
Recover Exchange Server 2007 database
Inaccessible EDB files of old Exchange versions such as Exchange 2007 needs to be accessed sometimes. It is made possible by this Exchange Recovery tool in a few steps and minutes.
Recover deleted mailboxes to PST, Exchange, Outlook profiles & Microsoft 365
This tool recovers even deleted mailboxes from the offline EDB file to Outlook PST files, live Exchange Server, Outlook profiles, and Microsoft 365 (cloud) directly.
Recover Exchange Server 2003 database
Exchange 2003 users need not to go anywhere to get their mailbox data back as this proficient tool supports this old Exchange Server version too for Exchange database recovery.
Recover deleted emails to PST, EML, MSG, etc.
This tool allows to export the deleted emails to multiple file formats – PST, EML, MSG, etc. to be used in email clients like Microsoft Outlook, Windows Live Mail or Outlook Express, etc.


Follow below steps to recover data from an unmounted EDB file:

Step 1: Run the software and select the Offline EDB File option from the available source options.

Step 2: Select “Standard Scan” or “Deep Scan” as the scanning mode.

Step 3: When the source EDB file content is displayed, select Export Mailboxes to PST from the right-click menu. It will open a wizard where you can easily filter the mailbox data.

Step 4: Provide the required options and click Export.

Repeat the same process for bulk migration of PST files with administrator privileges.

Yes, our software does that. You can recover corrupt EDB file and then restore the mailbox(es) into an existing PST file.
No, there is no limitations in the size of EDB file for the search operation.
No, the import PST to Office 365 tool is compatible with all Office 365 editions.
Yes, you can. Kernel for Exchange Server allows you to migrate all user mailboxes at once from EDB file to PST files. It also lets you to split the large-sized PST files into smaller sizes for better PST management.
Yes, it allows to migrate data from Exchange public folders (EDB file) to Office 365 public folders.
Before transferring the data, you need to create the Public folder yourself. The tool does not create any public folder.
Yes, the tool does that. It allows you to recover user mailboxes from corrupted or unmounted EDB file and restore it to live Exchange Server into healthy state.
The tool has live preview facility to allow you to access the source data (from EDB file and others) and let you decide what or whatnot has to be restored before the migration takes place.
Yes, you can. The tool allows to export all/selective mailboxes from EDB file to live Exchange Server in single attempt.
Yes. The tool exports all mailbox content (including email messages, attachment, calendar, contacts) from source platform to the desired destination.
Yes. The tool supports the migration of Unicode characters. You can choose the option to ‘create a Unicode PST’ file when selecting PST as your destination platform.
Yes, the tool allows you to directly migrate mailboxes from Exchange 2007 to Exchange Server 2016.
Demo version is available free of cost. However, with the facility to recover and preview the corrupt EDB files. It comes with an exclusive migration facility to restore EDB files (25 items from each recovered folder) to PST file, live Exchange Server or to Office 365 mailbox. To save unlimited number of EDB files, you need to purchase the software.
Yes. Software upgrades and Technical Support are free for lifetime.
Yes, you can install the software on as many workstations as you want using the Technician License.
Yes. The tool automatically skips duplicate items during export, migration, or recovery. However, you can retain the duplicate items just by clicking the Export duplicate items checkbox of the wizard.
The tool has the option to assign full access rights to an Office 365 user mailbox. With this option, you can delegate full access rights to any user mailbox from the software console itself.
The 'Out of Memory' error message occurs when EDB file is very large. You need to attempt the Exchange recovery once again; this time selecting "Use Disk Space" option after selecting the required recovery note.
Yes, of course. The software integrates the features to connect to Exchange Public folder and export its content to PST or other destinations as per the user’s requirement.
Yes, surely you can migrate the contact information selectively. On its Filter Selection window, there is a feature named Item Type filter. Just check the Contacts option and uncheck all the others.

This message comes up when either Outlook is not installed on the system or if Outlook is installed, then it is not configured properly.

If Outlook in not present, install Outlook on the system where software is running.

If Outlook is present, then make a new POP profile in Outlook (it can be a dummy non working one). Uninstall and reinstall the software and then try again and it´ll resolve your issue.

If yes, email it to us at support@nucleustechnologies.com and we´ll assist you promptly.
Yes, MS Outlook installation is a must. At least one profile should be configured in the Outlook. You can configure any temp profile, configuring working profile is not mandatory.
Yes, you can install the software on all versions of Windows operating system – including Windows 11, 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT and 95 and all Windows server 2012, 2008 R2, 2008, 2003 R2, 2003.
Yes, it supports all the versions of Exchange Server including 2019, 2016, 2013, 2010, 2007, 2003, 2000, 5.5 and 5.0.

How it Work's


Software Prerequisites & Recommendations

About Software

  • Version


  • Release Date

    View History

  • License Type

    Corporate & Technician

  • Version Support

    MS Exchange Server - 2019/2016/ 2013/2010/2007/2003/ 2000/5.5 and 5.0 MS Outlook - Office 365/2019/2016/2013/ 2010/2007/2003/2002/2000/98 and 97 Virtual Environments - VMware® Server 1.0x, 2.x, VMware® Workstation v6.0x for Windows, Microsoft® Virtual PC 2007, VMware® ESX 4.0, ESXi

System Requirements

  • Hard Disk

    150 MB of disk space

  • Memory

    2 GB Minimum

  • Processor

    Intel® Pentium Processor compatible (x86, x64) or equivalent

  • Operating System

    Windows 11, 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT, 95 Windows Server 2016/2012/2008 R2/2008/2003 R2/2003

Software Guides

User Reviews

Kernel for Exchange Server

(4.9 / 5) 504 Reviews

Effective, reliable and result-oriented tool for all type of uses.


I am utmost satisfied with the features of the tool and its assurance of successfully recovering the data. Wonderful work!!!


A multitudinous software application facilitated with all the technological features. Great design and assured recovery.

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