macOS Server 5.4, running on High Sierra, comes with a number of alerts that can be sent to administrators via servermgrd and configured since the 5th version of the Server app. To configure alerts on the server, open the Server app and then click on Alerts in the Server app sidebar.
Next, click on the Delivery tab.
At the Delivery screen, click on the Edit button for Email Addresses and enter every email address that should receive alerts sent from the server. Then click on the Edit button for Push Notifications. Here, check the box for each administrator of the server. The email address on file for the user then receives push notifications of events from the server.
Then, check the boxes for Email and Push for each of the alerts you want to receive (you don’t have to check both for each entry). Alerts have changed in macOS Server, they are no longer based on the SMART status of drives or capacity; instead Delivery is now based on service settings.
