The default Block Sender policy applies to which scope?

The default Block Sender policy is designed to apply universally across the entire organizational scope. This means that when established, the policy functions as a blanket rule that affects all users, regardless of their departmental classification or individual settings. By applying to the whole organization, it ensures that any specified senders deemed harmful or undesirable are blocked for every email account, enhancing the overall security posture and minimizing the risk of harmful communications.

In contrast, policies targeting specific users, groups, or departments would limit the scope and potentially create vulnerabilities by allowing certain segments of the organization to receive emails from those blocked senders. Such an inclusive approach is crucial in maintaining consistent security measures across all communication channels within the organization.