image/svg+xml Users Mail server Database server PostgreSQL, MySQL, Oracle postfix, exim, qmail,sendmail, Exchange, etc. RT webserver Apache, lighttpd, nginx, etc. External authentication LDAP, Active Directory, externaldatabase, webauth New tickets and replies via email to RT Notification emails from RT Web interface Optional authentication source For small installations, the database server can be on the same server as RT. Example Request Trackernetwork setup