Which Mimecast feature allows the temporary halting of email delivery to server?

The feature that allows for the temporary halting of email delivery to a server is the ability to pause inbound deliveries. This functionality is particularly useful for scenarios where an administrator needs to prevent the influx of incoming emails for troubleshooting purposes, maintenance, or during a security incident. By pausing deliveries, an organization can ensure that no messages are received, allowing time to address any issues without having new emails exacerbate the situation.

This capability provides flexibility in managing email traffic, especially in scenarios where adjustments to the server or its configurations are required, granting administrators control over email flow during critical periods. Additionally, it helps in managing potential overloads or mitigating risks before resuming normal operations.