Issue Summary

In the new Customer Service Management (CSM) architecture, the "Customer Experience" access settings act as a unified gatekeeper for both the Help Center (portal) and the Email channel. Currently, if an admin restricts a Customer Experience to "Only customers from organizations," the email handler automatically rejects any incoming mail from unrecognized senders.

To allow "anyone" to create a ticket via email, the admin must set the Experience access to "Anyone." However, this globally opens the portal, meaning any user who sends an email is automatically granted access to the Help Center UI and potentially sensitive Knowledge Base articles.