Msoft 365 not operational, Outlook not accessible

Claudia Fitch 0 Reputation points
2026-11-13T02:06:05.51+00:00

US Pacific time zone, 6:03pm. Msoft service health status reports Outlook operational.

Please note it is not operational at this time.

Outlook | Web | Outlook on the web for business | Email
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  1. AI answer

    2026-11-13T02:06:54.9566667+00:00

    Microsoft is currently reporting a Microsoft 365 service degradation in which users may be unable to connect to multiple services, so Outlook on the web may be affected even if an earlier Outlook-specific indicator appeared operational.^1^

    What to do now

    1. Avoid changing Outlook, browser, or mailbox settings during the active incident.
      Service-side access should recover as Microsoft completes mitigation.
    2. If you are a Microsoft 365 administrator, open the Microsoft 365 admin center and select: Health → Service health → Overview.
    3. Check both:
      • Exchange Online and Office on the web
      • Active issues Microsoft is working on
      • Issues for your organization to act on
      Select the active issue to view its user impact, affected services, status, and latest update. The tenant dashboard provides more targeted information than the public status page.^2^
    4. If the outage affecting your tenant is not listed, select Report an issue on the Service health page. Microsoft correlates these reports across organizations and adds an incident or advisory when service-side impact is confirmed.^2^

    If access remains unavailable after service restoration

    Treat it as a tenant or account-specific problem only after the dashboard reports Service restored:

    • Test another user in the same organization to determine whether the impact is account-specific.
    • Record the exact Outlook error, timestamp with time zone, affected users, and whether desktop/mobile access also fails.
    • As an administrator, open the Microsoft 365 admin center, select Help & support, enter the issue description, and use Contact Support if the suggested results do not resolve it. Business technical support is available continuously in English.^3^
    • If you are not an administrator, send those details to your organization’s Microsoft 365 administrator so they can review tenant health and submit the support request.

    References

    1. Microsoft service health status
    2. How to check Microsoft 365 service health
    3. Get support for Microsoft 365 for business
    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. BabybooHN 3,975 Reputation points Independent Advisor
    2026-11-13T02:10:32.99+00:00

    Dear @Claudia Fitch

    I would like to share an update regarding the connectivity issue affecting multiple Microsoft 365 services.

    According to Microsoft's notification (Incident ID: MO1550821), users may be unable to connect to or access multiple Microsoft 365 services, including Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot, and Microsoft Defender XDR.

    Microsoft has identified that the affected infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors. Microsoft is currently restarting and repairing impacted portions of the infrastructure to restore capacity. Additionally, they are investigating an unexpected increase in a specific type of service traffic and evaluating options to redirect traffic to alternative infrastructure to expedite recovery.

    The incident is currently classified as Service Degradation, and Microsoft is actively investigating and working to mitigate the issue.

    If you have Microsoft 365 administrator privileges, please sign in to the Microsoft 365 Admin Center to view the details of this issue.

    If you don't know who the admin is in your organization, you can find guidance here: How can I find my Microsoft 365 admin? - Microsoft Support    

    Alternatively, follow these steps:

    • Sign in to the Microsoft 365 Admin Center.
    • Go to Health > Service Health.
    • Search for Issue ID: MO1550821.
    • Select the issue and expand the details to review the latest updates, affected services, impact, and remediation information.

    I'll continue to monitor this case and let you know if there is any update.

    Kind regards.

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  3. Sumit 44,986 Reputation points Volunteer Moderator
    2026-11-13T02:23:12.72+00:00

    Hi,

    Microsoft claims they are working on it though, I will share the latest update :(

    https://status.cloud.microsoft/

    Latest update:

    https://x.com/MSFT365Status/status/2121045804852945188

    Current status: We’re applying infrastructure capacity improvements where possible in an effort to help support traffic in regions coming online. We’re continuing to monitor the results of changes applied so we can identify strategic actions that can help to improve service health across all affected regions.

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    1 person found this answer helpful.
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