We have a MAS Server doing our Voicemail. It seems like 2-3 times a week our MAS is Shutdown when I arrive at work. Although Being on at 7PM when I leave.

It is in a Locked Rack in a severroom with Little to No access except myself and 1 other person. Any Ideas on what could be causing it to shut down durring the night.

It is on a UPS along will all other Servers in that rack. The event Log shows nothing out of the ordinary.