Resolved: Issues accessing OWA (Outlook on the Web)

Incident Discovery Time: 04:15am on 06/06/2023 Time of Resolution: 01:34am on 06/07/2023 Services Impacted: Email & Calendaring

Description of Impact

Clients were reporting issues accessing or using Outlook.

Incident Description and Resolution

Microsoft reported service degradation issues with OWA (Outlook on the Web). Microsoft’s latest update, at 1:30 am on 6/7, stated: We continue to observe stable service health since we’ve applied our various preemptive mitigations and we will closely monitor the service should there be a recurrence.”

Additional Information

The cause of this incident has not been announced. If you continue to have issues, please contact the IT Help Center.

Previous Update

Incident Discovery Time: 04:15pm on 06/06/2023 Services Impacted: Email & Calendaring

Description of Impact

Microsoft is reporting issues accessing OWA (Outlook on the Web). Clients are having issues accessing Outlook on the web and other Microsoft services and features.

Current Status

More info: Impacted services and features may include, but are not limited to:
  • Exchange Online:
      – Users are unable to access Outlook on the web.
      – Users may also experience issues with the search function in Outlook on the web, Outlook desktop client, and the Outlook mobile application.
      – Users may also experience issues using the Outlook mobile application.
  • Microsoft Teams:
    • – Users may have difficulties scheduling meetings and/or live events.
      – Users may have trouble loading people’s profile cards.
      – Users may have issues loading file lists.
      – Users may not be able to create new teams & channels.
      – Users may not be able to install apps.
      – Users may have trouble issuing searches.
      – Users may see delays in admin policy changes taking effect.
      – Users might see errors when using messaging extensions.
      – Users may not see up-to-date Presence information.
      – Teams Graph APIs may be impacted.
      – Assignments tab in Teams may not load.
      – Teams Admin Center functionalities may not perform as expected.
  • SharePoint Online, OneDrive for Business, Microsoft Bookings, Microsoft Power Automate, and Power Apps in Microsoft 365 may also be experiencing some impact related to this issue.
  • Current status: Microsoft continues to observe stable service health since they’ve applied their various preemptive mitigations and will closely monitor the service should there be a recurrence.

    Additional Information

  • Scope of impact:
    • Users routed through the affected infrastructure are affected by this issue, however, the impact can vary depending on where users are hosted. Next Update: 10:00 am

    Previous Update

    Incident Discovery Time: 04:15pm on 06/05/2023 Services Impacted: Email & Calendaring

    Description of Impact

    Microsoft is reporting issues accessing OWA (Outlook on the Web). Clients are having issues accessing Outlook on the web and other Microsoft services and features.

    Current Status

    Around 12:34 AM, Microsoft reported continuing to observe stable service health since they’ve applied their various preemptive mitigations and will closely monitor the service should there be a recurrence. Next Update: 02:00am

    Previous Update

    Incident Discovery Time: 04:15pm on 06/06/2023 Services Impacted: Email & Calendaring

    Description of Impact

    Microsoft is reporting issues accessing OWA (Outlook on the Web). Clients are having issues accessing Outlook on the web and other Microsoft services and features.

    Current Status

    Around 18:04, Microsoft telemetry indicates that the service has remained largely stable; however, the incident is not fully resolved. They are broadening their mitigation strategy and will continue to intervene immediately should they detect further reductions in the availability of their services. Next Update: 07:00pm

    Previous Update

    Incident Discovery Time: 04:15pm on 06/06/2023 Services Impacted: Email & Calendaring

    Description of Impact

    Microsoft is reporting issues accessing OWA (Outlook on the Web). Clients are having issues accessing Outlook on the web and other Microsoft services and features.

    Current Status

    More info: Impacted services and features may include, but are not limited to:
  • Exchange Online:
      – Users are unable to access Outlook on the web.
      – Users may also experience issues with the search function in Outlook on the web, Outlook desktop client, and the Outlook mobile application.
      – Users may also experience issues using the Outlook mobile application.
  • Microsoft Teams:
    • – Users may have difficulties scheduling meetings and/or live events.
      – Users may have trouble loading people’s profile cards.
      – Users may have issues loading file lists.
      – Users may not be able to create new teams & channels.
      – Users may not be able to install apps.
      – Users may have trouble issuing searches.
      – Users may see delays in admin policy changes taking effect.
      – Users might see errors when using messaging extensions.
      – Users may not see up-to-date Presence information.
      – Teams Graph APIs may be impacted.
      – Assignments tab in Teams may not load.
      – Teams Admin Center functionalities may not perform as expected.
  • SharePoint Online, OneDrive for Business, Microsoft Bookings, Microsoft Power Automate, and Power Apps in Microsoft 365 may also be experiencing some impact related to this issue.
  • Current status: After applying mitigations, Microsoft is seeing availability return to healthy levels. Microsoft is continuing to monitor the environment while investigating the underlying cause, increasing monitoring, and developing further fixes to provide additional relief.
  • Around 12:03 PM, Microsoft has identified that the impact has started again, and they’re applying further mitigation. Telemetry indicates a reduction in impact relative to earlier iterations due to previously applied mitigations. Further details about the workstreams are in the admin center via MO572252.
  • Additional Information

    Scope of impact: Users routed through the affected infrastructure are affected by this issue, however, impact can vary depending on where users are hosted. Next Update: 01:15pm

    Previous Update

    Incident Discovery Time: 04:15pm on 06/06/2023 Services Impacted: Email & Calendaring

    Description of Impact

    Microsoft is reporting issues accessing OWA (Outlook on the Web). Clients are having issues logging into Outlook on the web.

    Current Status

    After applying mitigations, Microsoft is seeing availability return to healthy levels. Microsoft continues to monitor the environment while investigating the underlying cause, increasing monitoring, and developing further fixes to provide additional relief. Next Update: 01:00pm

    Previous Update

    Incident Discovery Time: 04:15pm on 06/05/2023 Services Impacted: Email & Calendaring

    Description of Impact

    Microsoft is reporting issues accessing OWA (Outlook on the Web). Clients are having issues logging into Outlook on the web.

    Current Status

    • Microsoft is seeing availability return to healthy levels. Microsoft is monitoring the environment while investigating the underlying cause, increasing monitoring, and developing further fixes to provide relief. Updates related to this event can be found under MO572252 in the admin center. 7:09 AM · Jun 6, 2023
    • Previous Update: Microsoft is seeing a recurrence of the issue and a drop in service availability, so Microsoft is applying mitigations to provide relief for the affected users, while continuing to investigate the root cause. Microsoft will be providing updates related to this event under MO572252 in the admin center. 5:06 AM · Jun 6, 2023
    Next Update: 09:11am

    Previous Update

    Incident Discovery Time: 4:15pm on 06/05/2023 Services Impacted: Email & Calendaring

    Description of Impact

    Microsoft is reporting issues accessing OWA (Outlook on the Web). Clients are having issues logging into Outlook on the web.

    Current Status

    Microsoft has implementing some changes intended to improve the user experience and will closely monitor to ensure these changes deliver the desired effect. They are seeing some service improvement, and we remain focused to investigate and address the source of the issue. Next Update: 9:00pm