We are currently using JIRA as our internal service desk at our company. In order to submit a ticket, they need to go to the Service Desk link. Many employees want to be able to submit a ticket from an email which can be done with the JIRA Outlook plugin. However, the plugin will only work if the user is a Project User. We do not want to make all our employees Project Users because we do not want them to see all company tickets. What can be done?