We are using the Active Directory integration to manage our techs and users in ServiceDesk Plus. So far, it has worked great for us. However, We are seeing non-domain users being created through improper customer entry.

Is there a way to force ServiceDesk Plus to require the customer to be a domain user? Or, enable the dynamic customer suggestion to work as a 'contains' query?

Also, we are allowing emails to our SDP instance to create a ticket. Is there a way to prevent ticket creation from non-domain email addresses?