Thursday, January 22nd, 2026
Incident Discovery Time: 02:33pm on 01/22/2026
Services Impacted: Email & Calendaring
Description of Impact
Users may be seeing degraded service functionality or be unable to access multiple Microsoft 365 services.
Current Status
Current status from Microsoft: “We’re seeing continued improvements in service availability and functionality as a result of our load-balancing efforts. We’re actively monitoring performance and making targeted adjustments to further improve stability and availability, while continuing recovery actions to ensure a reliable service experience.”
Additional Information
This is related to a widespread Microsoft outage. Microsoft’s updates can be found here:
https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect
Next Update: Upon resolution
Previous Update
Incident Discovery Time: 02:33pm on 01/22/2026
Services Impacted: Email & Calendaring
Description of Impact
Users may be seeing degraded service functionality or be unable to access multiple Microsoft 365 services.
Current Status
Current status from Microsoft: “We’re refining our load balancing efforts to optimize performance and reduce potential impact. In parallel, we’re assessing alternative solutions to reinforce recovery and enhance long term stability.”
Additional Information
This is related to a widespread Microsoft outage. More information can be found here:
https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect
Next Update: Thursday:9:40pm
Previous Update
Incident Discovery Time: 02:33pm on 01/22/2026
Services Impacted: Email & Calendaring
Description of Impact
Users may be seeing degraded service functionality or be unable to access multiple Microsoft 365 services.
Current Status
“Some of the impacted service functions include, but may not be limited to:
Sending and receiving email through Exchange Online, including notification email from Microsoft Viva Engage as well as subscription email for Microsoft Fabric users. Users may be receiving a “451 4.3.2 temporary server issue” error message when attempting to send or receive email through Outlook.
Collecting message traces in Exchange Online.
Searching within SharePoint Online, Microsoft OneDrive, and/or Microsoft Teams.
Accessing the service portals, including Microsoft Purview, Microsoft Defender XDR, and the Microsoft 365 admin center.
Creating chats, meetings, teams, channels or adding members in Microsoft Teams. Additionally, some users may be intermittently unable to create breakout rooms or Microsoft Teams live events.
Receiving presence or location information in Microsoft Teams.
Existing or new meeting options for Facilitator in Teams may not be honored.
Applying and managing sensitivity labels, interactive operations on reports, and artifacts with sensitivity labels in Microsoft Fabric.
Print registration and printer jobs may fail in Universal Print.”
Current status from Microsoft: “We’re continuing to refine our load balancing configurations to remedy residual imbalances across the environment and further our ongoing recovery efforts.”
Additional Information
This is related to a widespread Microsoft outage. More information can be found here: https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect
Next Update: Thursday, 08:30pm
Previous Update
Incident Discovery Time: 02:33pm on 01/22/2026
Services Impacted: Email & Calendaring
Description of Impact
Microsoft experienced an outage which has impacted Microsoft services on campus, such as:Exchange Online, Microsoft 365 suite, Microsoft Defender XDR, Microsoft OneDrive, SharePoint Online
More info:
Users may be receiving a “451 4.3.2 temporary server issue” error message when attempting to send or receive email through Outlook.
Some of the impacted service functions include, but may not be limited to:
– Sending and receiving email through Exchange Online, including notification emails from Microsoft Viva Engage.
– Searching within SharePoint Online and/or Microsoft OneDrive.
– Creating chats, meetings, teams, channels or adding members in Microsoft Teams.
– Receiving presence or location information in Microsoft Teams.
Root cause: Per Microsoft, a portion of dependent service infrastructure in the North America region isn’t processing traffic as expected.
Current Status
Microsoft has stated that they have restored the affected infrastructure to a healthy state, however, “further load balancing is required to mitigate persistent impact.”
Next Update: Thursday, January 22, 2026 at 7:30PM EST
Previous Update:
Incident Discovery Time: 02:33pm [corrected] on 01/22/2026
Services Impacted: Email & Calendaring
Current Status
Microsoft outages were reported.
Next Update: 06:00pm
