Microsoft sees early signs of recovery in 365 outage; extends email timeout to 48 hours

Microsoft has reported early signs of stabilisation in its global Microsoft 365 outage, although service capacity remains below normal levels and disruptions to Outlook and other applications continue. The company has also extended its email timeout window to 48 hours to help protect messages delayed by the disruption, as engineers work to restore affected infrastructure.

In its latest update, published on Friday, November 13, at 9:14:20 AM UTC (2:44 PM IST), Microsoft said: “We are seeing early signs of stabilization, but service capacity has not yet returned to normal levels and health remains variable as traffic is carefully reintroduced.”

This is a change from its previous update, where the company said that recovery measures were not delivering the expected results. “We've monitored the status of the changes applied to improve serviceability and confirmed they're not taking as expected,” Microsoft had said, adding that it was identifying “alternate workstreams” to increase capacity and address traffic-management imbalances.

The latest update does not say that those alternative measures have all been implemented successfully. Instead, Microsoft says its primary recovery approach now involves cycling affected infrastructure through “traffic drain, restart, remediation, and staged return-to-service”. It is also evaluating additional mitigation options to improve the speed and consistency of recovery.

What does the 48-hour email timeout mean?

For users concerned about when their Outlook mailbox will become accessible again, the 48-hour extension is not a timeline for restoring access. It does not mean users have to wait another two days to receive emails or open their inboxes.

Microsoft says it is extending the email timeout window to help protect messages that are delayed during the outage. In other words, the measure gives delayed emails a longer window to be handled while the company works on restoring normal service. It is intended to prevent messages from being lost prematurely during the recovery process. However, Microsoft has not guaranteed that all delayed emails will be delivered within 48 hours.

The company said network and traffic-management measures remain in progress, while engineering teams are prioritising “backlog and queue health to preserve delayed mail during recovery”.

List of affected services remains largely unchanged

The latest update does not indicate any major change in the list of affected Microsoft 365 services. Users may continue to face problems accessing Exchange Online through Outlook on the web and desktop, while email delivery may be delayed.

Other affected services include Microsoft 365 Copilot, Defender, Purview, Planner, Power Apps, To Do, SharePoint Online, Power BI, Fabric, Intune and Windows 365.

Microsoft Teams' core functions, including joining calls and meetings, group chats and standard channel messages, remain largely functional. However, features that depend on Exchange Online, such as calendar access, meeting scheduling, invitations and contact synchronisation, may continue to fail. Files stored directly in SharePoint Online also remain accessible.

Microsoft said it was not aware of any malicious activity causing the incident. It will publish a full Post-Incident Report covering the root cause and measures to prevent similar disruptions after recovery is complete.

The company has said it will provide its next update by 10:00 AM UTC on Friday, November 13 (3:30 PM IST). It has not provided a confirmed timeline for full restoration of Microsoft 365 services.