Which of the following items is part of the Service Monitor's reporting?

The Service Monitor in Mimecast provides detailed insights into various performance metrics and email delivery pathways. Delivery Routes are a crucial part of this reporting because they allow administrators to visualize and analyze how emails travel through the Mimecast services and across different delivery channels.

By monitoring Delivery Routes, organizations can understand the path taken by emails, identify any potential bottlenecks or issues that may arise in the delivery process, and ensure that emails are flowing smoothly between sender and recipient. This understanding is vital for maintaining email efficiency and security and supports troubleshooting efforts when delivery problems occur.

While Inbound and Outbound refer to the direction of email traffic, and Internal Directory population deals with managing user accounts and directory entries within Mimecast, these are not directly categorized under the reporting aspects of the Service Monitor as Delivery Routes are. The Delivery Routes offer a much more focused insight into the performance and reliability of email transmission, thus making it an integral part of the monitoring and reporting functions in Mimecast.