UPDATE:
Microsoft reports that all issues have been resolved.
ORIGINAL POST:
Microsoft Office 365 is currently experiencing some widespread issues on their Exchange Email platform. As of this time some users are reporting that the email service is entirely inaccessible and in the case where a user is still able to login, messages cannot be sent or received. In addition, administrators are unable to access the Exchange Administration console in the Microsoft 365 Admin Center.
Additional services that have Exchange dependencies, such as Microsoft Teams are similarly impacted.
Microsoft has acknowledged the issue, and has identified the root cause, but has no ETA for an expected resolution. We will update this post when more information is available.
These issues are solely on the Microsoft systems, at this time we will be happy to record and report any issues you might be experiencing.