2/6/2016 5:45p update: All Exchange services have been restored.
2/6/16 3:50p update: Engineers are continuing to work on restoration of Exchange Mail services. They are working with external vendors to assist in resolving the issues. ETA: 6:00pm.
2/6/16: 2:48p update: Now estimating a 4:00p restoration of Exchange Mail services.
2/6/16 11:35a update: Currently we are estimating 3:00p for restoration of Exchange Mail services.
2/6/16 630: Exchange email is currently down. There is no ETA for return of service.