If instance holds multiple SD projects, how you can control access between them?
SD A is primary site, where organization users are instructed to create tickets either by customer portal, email or by Jira itself.
SD B is for external users, where specific users can create tickets. SD B users are not allowed to access SD A.
SD A is configured for Customer Permissions as "Anyone can email the service desk or raise a request in the portal", because otherwise ticket creation can not be done by email. Is this really so?