Office 365 is experiencing a regional outage that is affecting mailflow. Although users are able to use email there have been reported incidents of slow and inconsistent mailflow delivery.
Microsoft Support has acknowledged this issue and is currently looking into the issue and expects to have a resolution shortly.
If you have any further questions, please feel free to email firstname.lastname@example.org or call 650-454-8850 and a Kinetix technician will be happy to help.
Kinetix Technology Services, LLC
1825 So. Grant St., Ste 850 | San Mateo, CA 94402
650 454 8850 | email@example.com | www.kinetix.com