Is it possible to allow anyone (not just registered users) to access the customer support portal?

Hi Marina,
While we do require someone to 'register' before they can create tickets, you can allow customers to 'self-register' themselves.

Here's a reference guide around configuring your portal for different access types:  https://support.logmeininc.com/gotoassist-service-desk/help/configure-customer-portal-access-permiss...