If the KnowBe4 Email Security Web add-In experiences issues that disrupt normal email operations, admins and users may need to disable it quickly to restore Microsoft Outlook functionality. This article provides instructions for disabling the add-in at the admin and user levels.

Admin-Level Disabling

Admins can use two different methods to disable the KnowBe4 Email Security add-in.

Disable Using the Microsoft 365 Admin Center

To disable the KnowBe4 Email Security add-in, follow the steps below:

1. Log in to the Microsoft 365 Admin Center.
2. Navigate to Settings > Integrated apps.
3. Locate the KnowBe4 Email Security add-in in the deployed apps list.
4. Select the add-in and select Remove or Edit Users to restrict access to specific users.
5. Confirm the removal when prompted.
6. The add-in will be disabled across Microsoft Outlook for all targeted users. It may take a few minutes to propagate the changes.

Disabling Using PowerShell

To disable the KnowBe4 Email Security add-in, follow the steps below:

1. Open PowerShell as an admin.

2. Connect to Microsoft Exchange Online using your admin credentials:

   Connect-ExchangeOnline -UserPrincipalName [authorized-admin]@[domain].com

3. Identify the target add-in if the identifier is unknown:

   Get-App -OrganizationApp | Where-Object {$_.DisplayName -like "*[add-in-name]*"} | Select-Object DisplayName, AppId, Enabled

4. Disable the add-in using the identified add-in ID:

   Set-App -OrganizationApp -Identity "[Add-in-ID]" -Enabled $false

5. Verify that disabling the add-in was successful:

   Get-App -OrganizationApp -Identity "[Add-in-ID]" | Select-Object DisplayName, Enabled

User-Level Disabling

Users can use two different methods to disable the KnowBe4 Email Security add-in.

Microsoft Outlook Desktop Client

Users can disable the KnowBe4 Email Security add-in for the Microsoft Outlook desktop client by following the steps below:

1. Open Microsoft Outlook.
2. Navigate to Files > Options > Add-ins.
3. At the bottom of the window, select Manage: Exchange Add-ins and select Go.
4. Unselect the check box next to the KnowBe4 Email Security add-in.
5. Select OK to save changes.

Microsoft Outlook Web App (OWA)

Users can disable the KnowBe4 Email Security add-in for the Microsoft Outlook Web app by following the steps below:

1. Visit https://outlook.office.com https://outlook.office.com (link opens in new window).
2. Select the gear icon in the top-right corner
3. Select the General tab.
4. Select View and manage your Microsoft 365 settings.
5. In the new tab, select My Apps from the left-side menu.
6. Locate the KnowBe4 Email Security add-in in the list.
7. Toggle off the add-in or select the three dots menu and select Remove.