TEMPORARY OUTLOOK FIX
On 12/05/2021, Microsoft rolled out an update for Outlook which has inadvertently caused emails not to show any message content. Please follow the below instructions to roll back the update until Microsoft roll out a permanent fix.
Office response from Microsoft as at 8:24am
Current status: We’ve identified the underlying cause of impact and are applying a fix. This fix will reach all affected users incrementally over the course of the next four-to-five hours. Once users receive the fix, they will need to restart their email client to apply the fix. In some circumstances, users may need to restart their client a second time for the changes to take effect. We expect to complete this process and restore service for all affected users by May 12, 2021, at 3:00 AM UTC.