When my customers file support cases in Service Desk with priority = Highest, I want Service Desk to email my-service@me.pagerduty.com.
I assumed I could use the "Send email" option in the Automation feature, but it seems it will only email Jira users. See attached screenshot. Note that I can NOT type any email address into the text field. I can only choose Reporter or Customers involved. 
What's the right way to trigger incidents in PagerDuty when customers file support cases in Service Desk?
