Resolved

Microsoft has confirmed that the Outlook service incident has been fully resolved. Email delivery and access have returned to normal operations.

If you experienced delays during the disruption, any queued or delayed messages should now be delivered. No further action is required at this time.

Thank you for your patience while this issue was addressed. Please contact our support team if you continue to experience any issues.

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Jaime Cantalupo
Recovering

We’re seeing positive progress with the Microsoft Outlook service disruption. Email delivery has begun to resume, and messages that were delayed may now start coming through.

Microsoft is continuing to stabilize the environment and balance system traffic to ensure consistent delivery for all users. Some users may still experience minor delays while this process completes.

No action is required at this time.

Thank you for your patience.

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Jaime Cantalupo
Identified

Microsoft has provided a new update: "During our ongoing efforts to rebalance traffic across the region, we introduced a targeted load balancing configuration change intended to expedite the recovery process, which incidentally introduced additional traffic imbalances associated with persistent impact for a portion of the affected infrastructure. We're remedying our load balancing configurations while, in parallel, reviewing the viability of expediting our ongoing incremental rebalancing and recovery efforts."

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Jaime Cantalupo
Updated

Microsoft has provided an additional update: "We're rebalancing traffic across all affected infrastructure to ensure the environment enters into a balanced state. We’re proceeding as quickly as possible, and this approach will help us identify any additional actions needed for recovery."

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Jaime Cantalupo
Recovering

Microsoft has restored the impacted systems and is continuing behind-the-scenes adjustments to fully stabilize the service.

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Jaime Cantalupo
Investigating

We are currently aware of a service disruption affecting Microsoft Outlook that may prevent some users from accessing email or cause delays in sending and receiving messages.

This issue is originating from Microsoft’s infrastructure and is affecting organizations globally. Our team is actively monitoring the situation and tracking Microsoft’s progress toward resolution.

At this time, no action is required on your part. We will provide updates as more information becomes available and once full service is restored.

Thank you for your patience while this issue is being addressed.

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Jaime Cantalupo
Began at:

Affected components
  • Microsoft Online
    • Office 365 Email Services