This page displays statistics of your domain's outgoing email traffic over a specified time-frame.
In the Domain Level Control Panel, go to Outgoing > Domain statistics:
Statistics displayed include: Spam ratio of spam emails to all filtered emails and the following metrics: Not Spam messages; Unsure messages; Spam messages blocked; Viruses blocked; Allow listed and Block listed etc.
You can also view the same domain statistics for incoming traffic - from Incoming > Domain statistics, see View Domain Statistics (Incoming).