Send an email when a new ticket is created and custom field checkbox is not check
I want to create a rule that will send an email to a group of persons when a new ticket is created and a custom field (checkbox) is not check.
New ticket --> checkbox custom field check --> no email sent
New ticket --> checkbox custom field not check --> email sent to a mailing list
I've already a "new ticket email" rule in place, but I'm not sure how to modify it to include the condition above.
Can someone guide me on the proper syntax ?
Thanks in advance!