Today Microsoft has suffered a second major failure of some of its online services, including Office 365. The main outage occurred very early in the morning, however some intermittent problems have continued throughout the morning. Microsoft say they are still working to determine the cause of the problems, but believe that the Internet’s DNS address system is to blame. This is the second time that major problems have troubled Microsoft in the short time of two months that the service has been up and running. These two high profile failures in such a short period of time will no doubt make people question whether they can trust the cloud services over there own on premise systems in order to obtain the anywhere anytime work environment. Again this could cost Microsoft a fair amount of money if the outage time breached the SLA.