The easiest way to achieve this is to leverage the new PlayBlocks application (under Horizon) in the Infinity Portal.
This application allows you to define triggers and actions on events that happen in your security systems. It has integrations to notify you via email, SMS and even Teams or Slack. It can also open a ticket for you in ServiceNow if you'd like (although I wouldn't recommend that for every IPS attack).
Beyond notifications, it can also take remediation actions such as blocking the IP of the attacker at the Firewall level so that they can't continue to attack you. Here's an example:
It's a relatively new offering, so if you are missing something or have additional requirements, we're eager for feedback 😉
BTW, both Smart-1 Cloud and on-premise customers can use PlayBlocks. If you are on-prem, you just need to connect to the Infinity Portal first, using the Infinity Services tab in SmartConsole (R81.10 and up).