...
The Email, SNMP, and SMS (text message) tabs let you configure these optional endpoints. The fields on these tabs are self-explanatory, although please note that SMS requires the use of a Twilio account.
The 'Custom' tab contains a custom code device which let's apply custom logic to alerts, as well as to apply custom filtering. This custom code device acts in the same fashion as any other, but uses an event callback "OnAlertReceived" to let you add custom logic. The "OnAlertReceived" method includes an AlertReceivedEventArgs parameter which contains information about the event being generated. The object contains the following items:
...