Hi Asish,I'm not sure there's a documented use case for these options. I'll check if there is a plan for it.If you authorize only identified visitors, only the originial recipients of the email will be able to open it.Visitor identification via URL parameters can be used if you want to setup a different way for visitors to be identified by the system by passing specific encrypted parameters in the URL. In this case you'd need to encrypt these URL parameters because you obviously cannot have prof...