Just so you know... will only trigger on staff activity. This means that if you do not have around the clock staff and an email comes in at 1am, it will not get processed and a ticket created until staff come in the next morning. The recommended setup is to disable that setting and trigger cron.php using a Cron job or Windows Task Scheduler.More information regarding this can be found here:http://osticket.com/wiki/POP3/IMAP_Setting_Guide