I am unable to send / receive emails since yesterday after 11:00AM?

Orlando Martinez 0 Reputation points
2026-11-13T10:37:55.4566667+00:00

I am unable to send / receive emails since yesterday after 11:00 am. It is not a password issue as outlook from the web will not open. Please advise next steps or when will we be back on-line.

Outlook | Web | Outlook on the web for business | Email
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  1. Hin Vo 1,755 Reputation points Independent Advisor
    2026-11-13T10:51:42.7333333+00:00

    Hi @Orlando Martinez

    I’d like to share an update on the connectivity issue currently affecting several Microsoft 365 services.

    According to Microsoft’s advisory (Incident ID: MO1550821), users may have difficulty connecting to or accessing Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot, and Microsoft Defender XDR.

    Microsoft has determined that the affected infrastructure is under high load in several regions, which is likely causing the connectivity failures. To restore capacity, Microsoft is restarting and repairing the impacted portions of the infrastructure. It is also investigating an unexpected spike in a specific type of service traffic and evaluating options to redirect that traffic to alternative infrastructure to speed up recovery.

    The incident is currently classified as a Service Degradation, and Microsoft is actively investigating and working on mitigation.

    If you have Microsoft 365 admin privileges, you can view the details in the https://admin.cloud.microsoft/?ocid=cmm45ut5ap0#/servicehealth/:/alerts/MO1550821
    Alternatively, you can track the status on the Microsoft service health status page.

    I will continue to monitor this case and will share further updates as soon as they are available.

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  2. AI answer

    2026-11-13T10:39:22.2666667+00:00

    Check the Microsoft public status page now, or ask your Microsoft 365 administrator to open Health > Service health > Exchange Online for the tenant-specific status and latest restoration update.^1^

    Immediate next steps

    1. Open Microsoft service health status.
      • This public page is useful if nobody can sign in to the Microsoft 365 admin center.
      • It may contain less detail than your organization’s authenticated Service health dashboard.
    2. If you have administrator access, sign in to the Microsoft 365 admin center, then select: Health > Service health > Exchange Online.
      • Open any active incident to see its user impact, current status, Microsoft’s updates, and any published restoration estimate.
      • If Exchange Online shows an incident affecting mailbox access or mail delivery, there is no local Outlook repair to perform. Monitor that incident while Microsoft restores service. A separate support request normally is not needed while the matching incident remains active.^2^

    There is no reliable way to provide an independent recovery time. Use the incident’s All Updates section for Microsoft’s latest status and any estimated restoration time.^1^

    If no incident is listed

    Because Outlook on the web also fails, do not start by repairing the desktop Outlook application. Ask the administrator to determine whether:

    • Other users in the organization are affected.
    • Your mailbox still has an active Exchange Online license.
    • Outlook on the web displays a specific error code or message.

    For the license check, the administrator can go to:

    Microsoft 365 admin center > Users > Active users > select your account > Licenses and apps

    Confirm that the applicable Exchange Online service is enabled. A business user account can exist without an active Exchange mailbox if its Exchange license was removed or did not provision correctly.^3^

    The administrator can then run Diag: Troubleshoot Email Delivery in the admin center, entering the relevant sender, recipient, and time of the failed message. This diagnostic requires a Microsoft 365 administrator account and is unavailable for Microsoft 365 Government, Microsoft 365 operated by 21Vianet, and Microsoft 365 Germany.^2^

    If the tenant is not shown as affected—or Outlook on the web remains inaccessible after Microsoft marks the incident restored—the administrator should select Support > New service request in the Microsoft 365 admin center and include:

    • The time the problem began, including time zone.
    • Whether other users are affected.
    • The exact Outlook on the web error message.
    • Results of the Exchange Online license check and email-delivery diagnostic.

    References

    1. How to check Microsoft 365 service health
    2. Find and fix email delivery issues as a Microsoft 365 for business admin
    3. I am not able to send or receive emails - Microsoft Q&A
    AI-generated content may be incorrect. Read our transparency notes for more information.

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