January 09, 2019 1:15 p.m.
Users are receiving an error when attempting to manage their rules in the Outlook client.
We're continuing to conduct tests to validate the viability of the fix and expect to begin staging the fix for deployment next week. We expect that the long-term deployment will take up to a month to complete. For complete details on this event, please reference the post from 5:18 PM UTC on December 27, 2018.