This KB will detail how to configure Service Catalog to send an email notification when a ticket is created.
Release : 17.3.x and above
CA Service Catalog
1. Login to Service Catalog with an administrator account
2. Navigate to Administration > Events-Rules-Actions
3/ Click the "Request/Subscription Item Change" event
4. Click on the selected rule (ensure is enabled)
5. From the Rule Details screen, you will click the Add button
6. Under Type, you can Select Email or Request Mail and configure as necessary
Be sure to click OK and save all your work