Alarm Pipeline Notification for Multiple People in the Same Email Thread

I'm using the Alarm Notification Pipeline to email a roster during an alarm event. Right now each user in the roster is emailed separately. I would like to know if there is a way to send To: all contacts in the roster from a single email, not hiding the rest of the contact list.
We would like to be able to Reply All to the original email in order to create an email discussion around the event.

Hi jesse.daniels,

There isn't a simple setting when working with alarm notifications and rosters to allow one single email to all the recipients on that roster. It will always go down the list one at a time. However, you can try using the system.net.sendEmail - Ignition User Manual 8.1 - Ignition Documentation function in a script block replacing the notification block inside the alarm pipeline. This should send one email to all the recipients you list in the function, but you will not be able to acknowledge the alarm from that email.