I want to allow customers to use the RT, too.
Once RT receives an e-mail from a new emailadress, an RT-account should be automatically created (password generated randomly) for this email address. Then this authentication-info should be sent to the customer as a welcome message with a couple of instructions how to use the RT. So if the customer accesses the RT he should see all his open and closed tickets and can perform actions like close ticket, reopen ticket, reply.
Is there any existing extension for rt?