When riskware detection is enabled on a managed Network Security or Email Security — Server appliance, you can use the Appliance Settings > Riskware Policy page to enable or disable a particular policy rule. When you enable at least one matched policy rule on a managed Network Security or Email Security — Server appliance, you can have the managed appliance generate a riskware alert on a non-malicious submission. For managed Email Security — Server appliances, you can also choose to block an email from being delivered to the intended recipient.
To enable or disable riskware detection custom policy rules:
Click the Settings and then select Appliance Settings.
Click Riskware Policy in the sidebar.
Configure settings as described in the Network Security Guide or Email Security — Server User Guide.