Error: “Invalid Class String” or “Class not Registered”

Please make sure MS Outlook is installed on the system on which you are running the Kernel Tool.

If Outlook is installed, make a profile in Outlook ( it can be a dummy/non-working one) and then uninstall and re-install the Kernel tool and it’ll resolve your issue.

Error: “Not enough memory” or “Not enough space available”

Please make sure Outlook is installed on the system on which you are using the Kernel tool.

Error: ”Getting Server failed”

Make sure the computer is connected to the Internet. Also, try to connect to Office 365 directly or through Outlook.

Error: “Server is not Operational”

You have to enter the name or IP Address of the domain controller where Active Directory is installed. Provide the login credentials of an administrator that has full rights over the selected or all mailboxes of Exchange Server.

Required Rights for Multiple Mailboxes-

The user should be a member of the following groups to access the multiple mailboxes of Exchange Server.

  • Administrators
  • Domain Admins
  • Enterprise Admins
  • Group Policy Creator and Owner
  • Schema Admins

If the user does not have these rights, perform the following steps to assign them:

  • Go to Administrative Tools.
  • Open “Active Directory Users and Computers.”
  • Go to “Users.”
  • Double-click the selected user to access its properties.
  • Click “Member Of” tab.
  • Click “Add Group” and select the following groups:
    • Administrators
    • Domain Admins
    • Enterprise Admins
    • Group Policy Creator and Owner
    • Schema Admins
  • Click “Apply” and “OK.”
Required Rights for Public Folders

To access Exchange Servers' Public Folders, the user should have any of these permission levels:

  • Owner
  • Publishing Editor
  • Editor
  • Author
  • Publishing Author
I am not able to save the content from a corrupted EDB file, but the software is displaying it

If you are able to see your content of EDB file into Kernel tool preview but you Click Save and nothing happens that means the Kernel tool is experiencing issues connecting to MS Outlook.

Please make sure MS Outlook is installed on the system on which you are running the Kernel Tool.

If Outlook is installed, make a profile in Outlook (it can be a dummy/non-working one) and then uninstall and re-install the Kernel tool and it’ll resolve your issue

I am not able to connect to Archive Mailbox

Please make sure that the archiving for the selected mailbox is enabled.

The provided user should have the sufficient privileges to access the archive mailbox.

Please check whether you are able to access Archive Mailbox in Microsoft Outlook. Unless you are able to connect to archive mailbox in Outlook, you cannot connect to Archive Mailbox using Kernel for Exchange Server.

If you still face this issue, please try to connect to Archive Mailbox using an existing Outlook profile.

I am not able to expand the mailboxes of Office 365 in the software (MAPI Error or any other error)

To access multiple Office 365 mailboxes, the user should have the following rights:

  • The user should be Global Administrator.
  • The user should be a delegate with Full Access permission over all the mailboxes, which you intend to access in Office 365.

If the user does not have Full Access permission, perform the following steps to assign it:

  • Login to Office 365 admin portal in a Web browser.
  • Go to Admin Office 365.
  • Go to User Active User.
  • Select the user to whom you want to delegate the full access right.
  • Click on “Edit Exchange Properties.”
  • “User Mailbox” page opens up. Go to “Mailbox Delegation.”
  • Go to “Full Access” and click “Add.”
  • “Full Access Picker” dialog box opens up. Select the user mailboxes, on which the delegate user wants to get full access.
  • Click “Add” and “OK.”
Issue: Inappropriate or less recovery of mailboxes from the corrupt EDB files

In the absence of STM file for Exchange 2000 Server and Exchange Server 2003, the software will not be able to recover the mailboxes completely.

It is mandatory to add the STM files while adding the EDB files of both Exchange 2000 Server and Exchange Server 2003 as the Sources. It will let the software recover all mailboxes without any error.