Or you could have the actual information
Title: Can't connect to Exchange Online
User Impact: Users may have been unable to connect to the Exchange Online service.
Final status: After a period of monitoring the service, we can confirm that rerouting traffic restored availability.
Scope of impact: This issue could have potentially affected any of your users intermittently if they were routed through the affected infrastructure.
Start time: Monday, September 18, 2017, at 7:20 AM UTC
End time: Monday, September 18, 2017, at 10:00 AM UTC
Preliminary root cause: A subset of mailbox infrastructure became degraded, causing impact to availability.
- We're analyzing performance data and trends on the affected systems to help prevent this problem from happening again.
This is the final update for the event.