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Outage in Quest

Service Degradation: On Demand Migration Domain Rewrite Email Delivery

Resolved Minor
June 02, 2026 - Started 7 days ago - Lasted about 9 hours
Official incident page

Incident Report

Our cloud services provider is currently experiencing a service degradation in Exchange Online affecting customers using On Demand Migration Domain Rewrite. As a result, customers will experience significant delays or failures when sending and receiving emails. Queued messages in Domain Rewrite will be delivered once the service from our cloud service provider is accepting incoming messages. M365 Admins can track real-time updates on our cloud service provider's status page: https://admin.cloud.microsoft/?source=applauncher#/servicehealth/:/alerts/EX1331830 We are actively monitoring the situation and will update this notice as soon as new information becomes available.

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Latest Updates ( sorted recent to last )
RESOLVED 7 days ago - at 06/03/2026 05:06AM

Our cloud service provider has resolved the degradation in Exchange Online. Queued messages in Domain Rewrite are being processed and delivered.

MONITORING 7 days ago - at 06/02/2026 10:00PM

Our cloud service provider is actively resolving the service degradation, and we are already seeing improvements — queued messages in Domain Rewrite are now being processed and accepted by Exchange Online.

We are continuing to monitor the situation closely and will update this notice as further information becomes available.

MONITORING 7 days ago - at 06/02/2026 09:59PM

Our cloud service provider is actively resolving the service degradation, and we are already seeing improvements — queued messages in Domain Rewrite are now being processed and accepted by Exchange Online.

We are continuing to monitor the situation closely and will update this notice as further information becomes available.

IDENTIFIED 7 days ago - at 06/02/2026 09:50PM

Our cloud service provider is actively resolving the service degradation, and we are already seeing improvements — queued messages in Domain Rewrite are now being processed and accepted by Exchange Online.

We are continuing to monitor the situation closely and will update this notice as further information becomes available.

IDENTIFIED 7 days ago - at 06/02/2026 08:45PM

Our cloud services provider is currently experiencing a service degradation in Exchange Online affecting customers using On Demand Migration Domain Rewrite. As a result, customers will experience significant delays or failures when sending and receiving emails.
Queued messages in Domain Rewrite will be delivered once the service from our cloud service provider is accepting incoming messages.

M365 Admins can track real-time updates on our cloud service provider's status page:
https://admin.cloud.microsoft/?source=applauncher#/servicehealth/:/alerts/EX1331830

We are actively monitoring the situation and will update this notice as soon as new information becomes available.

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