Policy
Specify contact email address or Email ID
Specify the email address or email ID that will be displayed in Windows Security and associated notifications. Users can click on the contact information to create an email that will be sent to the specified address. The default email application will be used. Enabled: Enter the email address or email ID in the Options section. Disabled: A contact email address or email ID will not be shown in either Windows Security or any notifications it creates. Not configured: Same as Disabled.
38a8b74ee4ee EnterpriseCustomization_Email Registry
Copy registry mappings
HKLM\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Enterprise Customization\EmailPolicy notes
Specify the email address or email ID that will be displayed in Windows Security and associated notifications. Users can click on the contact information to create an email that will be sent to the specified address. The default email application will be used. Enabled: Enter the email address or email ID in the Options section. Disabled: A contact email address or email ID will not be shown in either Windows Security or any notifications it creates. Not configured: Same as Disabled.