Outage in Pexip

Cloud OTJ Service Disruption Affecting M365 Mailboxes

Resolved Major

February 28, 2026 - Started about 1 month ago - Lasted 2 days
Official incident page

Incident Report

Summary AI Generated

Pexip's Cloud OTJ service experienced a major disruption affecting some Microsoft 365 mailboxes for 48.9 hours. The issue was traced to a third-party application making excessive mailbox queries through the Microsoft Graph API, causing degraded performance and unexpected behavior in Cloud OTJ functionality. Pexip resolved the incident after determining no issues existed within their own Cloud OTJ service, advising customers still experiencing problems to contact support for environment-specific guidance.

We have observed a Cloud OTJ issue affecting some M365 mailboxes. Our Team is looking into it.

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Latest Updates ( sorted recent to last )

RESOLVED about 1 month ago - at 03/02/2026 09:51AM

We have completed our investigation and found no issues within Pexip Cloud OTJ. Some Microsoft 365 tenants may experience degraded performance caused by mailbox activity from third party applications using the Microsoft Graph API.

Customers still experiencing Cloud OTJ issues should contact support for further investigation and guidance.

MONITORING about 1 month ago - at 02/28/2026 04:41PM

We have identified an issue affecting some Microsoft 365 tenants. The impact has been traced to a third-party application making mailbox queries through the Microsoft Graph API, which may result in degraded performance or unexpected behavior in Pexip Cloud OTJ.

Customers experiencing issues with Cloud OTJ are advised to open a support ticket so our team can review their environment and provide additional details and guidance.

INVESTIGATING about 1 month ago - at 02/28/2026 09:03AM

We have contacted Microsoft to investigate this issue together with them.

INVESTIGATING about 1 month ago - at 02/28/2026 09:00AM

We have observed a Cloud OTJ issue affecting some M365 mailboxes. Our Team is looking into it.

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