Update: This issue has been resolved and it is now safe to restart Outlook.
Microsoft Outlook on Windows is crashing worldwide due to An issue on Office 365’s servers. If you close out of Outlook and you are on the most recent version your Outlook will probably not re-open. Please refrain from restarting Outlook.
This issue is not reported as affecting Outlook on mobile or web.
If your Outlook is not working, please call our office at 859-226-9222 and we can apply a workaround or use webmail (https://mail.office365.com) until the issue is resolved at Office 365.
We will update this page when the issue is resolved.
7/16/2020 @ 8:55AM EST – Issue has been resolved per Microsoft. “We’ve confirmed that the issue has been successfully resolved after extended monitoring of our telemetry. If users are continuing to see impact, please restart your Outlook client for the changes to take effect.” – Microsoft
7/15/2020 @ 6:15PM EST – Most users are not experiencing this issue anymore. We suggest not restarting Outlook until this issue is completely resolved. Per Microsoft “Our service telemetry indicates that the vast majority of customers have received our fix; however, we’re still observing some signs of lingering impact to a subset of users. Users that are still impacted may need to restart their Outlook client for the fix to take effect.”
7/15/2020 @ 3:03PM EST – Microsoft is working to fix the issue. The issue is still present. Please refrain from restarting Outlook.
7/15/2020 @ 1:45PM EST – Microsoft is working to fix the issue. The issue is still present. Please refrain from restarting Outlook.