Outlook on the web access issues (outlook.office.com)

Resolved

Microsoft has applied a fix and declared the issue resolved.

Update

Microsoft has identified the issue and is performing validation on a fix. They have also reported that some mobile clients and the newest versions of Outlook may also be impacted, in addition to Outlook on the web.

For the latest status on this issue, please go to https://twitter.com/msft365status

Investigating

Microsoft is aware of and investigating an issue impacting users that access Outlook on the web (outlook.office.com) and is currently investigating. For the latest status on this issue, please go to https://twitter.com/msft365status

IS&T has determined that some MIT users are impacted and may encounter an unexpected 500 error when accessing Outlook on the web.