I'm running on CentOS 6.5php 5.3.3mysql 5.1.73Apache 2.2.15I've successfully installed the latest version of osTicket. But, I tried to send a mail from the diagnostic page it just don't work. Is there any special setting required?1. Is it possible to integrate with MS Exchange for emailing?2. Possible to added in required field when closing ticket?3. Possible to generate CI Report and export to CSV or XLS?