Microsoft Alert: Service degradation –Exchange Online – Inbound email is being routed to the junk folder- RESOLVED

28-05-2021 09:03:10 AM (BST)

Issue Reported: 26/05/2021 08:40:00 PM

Microsoft Reference : EX258373

Issue Status: RESOLVED

Issue Description: We are aware of an issue wherein users may have observed that incoming mail was being routed to their junk folder.

Within Threat Explorer, admins may have observed delayed message state updates for messages that were reprocessed during our mitigation efforts.

Scope of impact: Any users that received inbound mail between 7:50 PM UTC and 10:15 PM UTC on May 26, 2021, were affected. While the majority of this mail was delivered, a small percentage of these impacted messages took an extended period of time to process.

Final Update – 28/05/2021 09:03:00 AM: Microsoft have processed all affected messages and confirmed that this issue is mitigated.

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