I'd like to have a customer sign up for a product, and allow an unlimited number of users from that domain to have access to the same product at no charge, provided the master account is paid. If the master account is no longer paid, the sub accounts should lose access as well. So for example: Client "A" signs up for a monthly subscription, from email@example.com, at $$$/month As long as Client "A" is paying for the subscription, I'd like any person with an email address from @domainname.com to be able to have access to the same content as Client "A". As soon as Client "A" stops paying/cancels the subscription, all of the accounts from @domainname.com would be canceled. Is this possible?