When a new requester (i.e.: someone not in the Requesters list, and their domain is not associated with any account) sends an email in to my support email address, the request shows up, but there are no email notifications sent out for it (to the Requester, or to the Technician). 

This is either a terrible flaw in the design of the system, or I am missing a setting somewhere.

How are people with @gmail.com or @yahoo.com emails supposed to open tickets for example, and have the Technicians notified? The ticket shows up, but there are no auto-generated emails, and the request is "orphaned" because it doesn't have an Account associated. 

Please assist!