I've been an avid osTicket user for years, but this latest issue I've never seen before. After upgrading from 1.6 > 1.9.1 I can see that the mailfetch cron job is working because it is moving the email out of my Office365 inbox to my designated subfolder, but when I go into osTicket no ticket is being created. I can also see the system log and there are no mailfetch errors. I performed the upgrade by first going to 1.7.8 > 1.8.3 > 1.9.1 based on a blog article I found.