Exchange authentication issues Wednesday 29th July 2020 01:30 PM


Due to a temporary network outage, 3 of our Exchange servers terminated a few key services due to not being able to communicate with the DAG witness server. Once the issue was discovered, the services were restarted and authentication events began to pass as expected.

Impact: continuous authentication requests, inability to communicate with on-prem mailboxes and calendars.

Affected Applications: all mail applications