Appendix L: Outlook Add-In

The Outlook Add-In enhances user security awareness and actionability by integrating protection features directly into the Outlook application. The add-in supports the following primary use cases:

• Misdirected Email Prevention

  Identifies and alerts users to potential mistakes when sending emails, such as typos in recipient addresses, lookalike domains, or unauthorized external recipients. See Configuring Misdirected Email Prevention.

• Report Phishing

  Enables users to report suspicious emails directly from Outlook, contributing to faster threat detection and response. See Check Point Report Phishing Button.

• Email Security Portal Access

  Allows authorized users to quickly access the Harmony Email Security Portal to manage quarantined emails and submit restore requests directly from their inbox. See Accessing the Email Security Portal from Outlook.

Configuring the Outlook Add-In

This section explains how to configure and deploy the Outlook Add-In for your organization.

Configuring the Outlook Add-In consists of two main steps:

1. Generating the Add-In XML

2. Deploying the Outlook Add-In through Microsoft 365 Admin Center

Generating the Add-In XML

Administrators can configure the Outlook Add-In from the User Interaction settings in the Harmony Email & Collaboration Administrator Portal. These settings allow administrators to enable features, customize labels, and define end-user interaction preferences.

To generate the Add-In XML:

1. Access the Harmony Email & Collaboration Administrator Portal.

2. From the left navigation panel, go to User Interaction > Misdirected Emails.

3. In the Misdirected Emails page, click Add-In Configuration.

4. In the Outlook Add-In Configuration pop-up that appears, configure the following settings.

   

   1. In the Add-In name field, enter a name for the add-in. This appears as the name of the add-in in the Outlook application. To use the default name of the add-in, click Default Label.

   2. In the Select Outlook version section, select your Outlook version.

      • New Outlook

      • Classic Outlook

        Notes: By default, the New Outlook option is selected. The Outlook Add-In is supported in the following Classic Outlook versions. macOS: 16.104 Windows Admin Center: 2511

   3. Configure the Add-In features section:

      1. To enable on-screen warnings before sending an email when a misdirected recipient is detected, select the Misdirected recipients checkbox.

         Note - The Misdirected recipients checkbox is not available on mobile devices.

         1. To show Check Point branding in the warning dialog, enable the Display ‘Powered by Check Point’ toggle.

         2. To allow users to bypass the warning if needed, enable the Allow end users to ignore warnings toggle.

            Note - The Display ‘Powered by Check Point’ and Allow end users to ignore warnings toggles are not available on mobile devices.

      2. To add a Report Phishing button to the Outlook ribbon, select the Report Phishing checkbox.

         • In the Label Name field, enter a name for the button. This appears as the name of the button in the Outlook application. To use the default name of the button, click Default Label.

      3. To add a button that opens the Email Security Portal directly from Outlook, select the Email security portal checkbox. It allows users to manage quarantined emails and restore requests without re-authentication.

         • In the Label Name field, enter a name for the button. This appears as the name of the button in the Outlook application. To use the default name of the button, click Default Label.

      4. Click Save & Download .xml to download the add-in configuration file.

Deploying the Outlook Add-In through Microsoft 365 Admin Center

After configuring the Outlook Add-In and downloading the .xml configuration file. Upload it to the Microsoft 365 Admin Center to deploy or update the add-in for your users.

For more information, see Deploy Add-Ins in the Microsoft 365 Admin Center.

Outlook Add-In - Supported Outlook Types and Platform