Which of the following is NOT a type of policy recognized in Mimecast?

The type of policy that is NOT recognized in Mimecast is a Policy Override Policy. In Mimecast's context, policies are crucial for managing email traffic and ensuring security, and they are generally categorized into specific types. Permit Sender Policies, Spam Policies, and Blocked Sender Policies each serve distinct purposes in controlling the flow of emails, such as allowing emails from confirmed senders or identifying and filtering out spam and malicious content.

A Policy Override Policy is not part of the recognized policy types because Mimecast typically focuses on clear-cut policies that determine how emails should be treated based on sender reputation, content analysis, and other criteria, rather than having an umbrella policy that might contradict or negate other defined policies. This clear distinction helps maintain a structured and efficient workflow for email security and delivery management.