Thursday, August 13, 2020

M365 Service Health Notification

Microsoft

Exchange Online service alert

Incident information

Title: Any user or admin may experience various issues intermittently when using the service
ID: EX220140

Status

Service Degradation

Details

Title: Any user or admin may experience various issues intermittently when using the service

User impact: Users or admins may experience various issues intermittently when using the service.

More info: The following entails the affected impact scenarios:

- Admins may experience intermittent issues when attempting to review or export logging results from the Exchange admin audit log.

- Users may experience intermittent issues when sending or receiving emails via any connection method. Affected users may also see the following error message: "This message could not be sent. Your server administrator has limited the number of items you can open simultaneously."

Users and admins who encounter these issues may re-attempt these actions to complete the process.

Current status: We believe that a recent service update introduced a code issue that's causing an unexpected increase in resource consumption on our infrastructure, resulting in impact. While we continue to confirm that this is the source of impact, we're developing and testing a potential code fix which we believe should remediate impact.

Scope of impact: This issue could potentially affect any of your users intermittently when attempting to send or receive emails, or admins if they're attempting to review or export logging results from the Exchange admin audit log.

Start time: Friday, July 17, 2020, at 12:00 PM UTC

Root cause: A recent service update introduced a code issue that's causing an unexpected increase in resource consumption on our infrastructure, resulting in impact.

Next update by: Friday, August 14, 2020, at 10:00 PM UTC

Thank you,
The Microsoft team

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