The authentication issues have been resolved. The Exchange servers are responding to requests. The emails that have been deferred will be delivered on the next retry interval of the individual message.
We are continuing to monitor the system. At this time, the Exchange+ 2016 platform is operating.
Posted Aug 25, 2021 - 16:19 EDT
Update
Server authentication issues persist. The team is continuing to work diligently. We do not have an ETA due to the unpredictable nature of the situation.
Posted Aug 25, 2021 - 15:13 EDT
Update
The team is continuing to work through the troubleshooting process to resolve the issue as quickly as possible.
Posted Aug 25, 2021 - 14:24 EDT
Identified
A security subsystem of the operating system may be preventing the Exchange servers from authenticating connections. The team is continuing to troubleshoot.
Posted Aug 25, 2021 - 13:35 EDT
Update
The team has identified errors in the Event Logs but is still investigating. Services are being restarted with a priority to restore connectivity first.
Posted Aug 25, 2021 - 12:55 EDT
Update
We are continuing to investigate the issue.
Posted Aug 25, 2021 - 12:13 EDT
Investigating
We have received reports of email clients not being able to connect to the Exchange+ 2016 platform. We are investigating the issue.