The MS Exchange at our office has decided to choose the week the manager is away to go beserk. It has stopped. I've tried rebooting several times, but none of the mail services will start and the event log keeps complaining about Error -550 and that there is an error with the directory or ExchangeDS. I'm a programmer, so I'm hopeless when it comes to fixing this kind of thing. I know I probably haven't given enough info, but if anyone can help please get back to me as soon as possible!