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Outage in Exclaimer

Message processing issues in UK

Resolved Minor
March 17, 2026 - Started about 1 month ago - Lasted about 10 hours
Official incident page

Incident Report

Summary AI Generated

Exclaimer experienced message processing issues in the UK that affected Mail Routing for Office 365 users. The service degradation lasted 9.6 hours before the team identified the root cause and implemented a fix. Mail routing has returned to stable operation and is being monitored.

We are currently investigating this issue.

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Latest Updates ( sorted recent to last )
MONITORING about 1 month ago - at 03/18/2026 08:10AM

We have identified what was behind the degraded service in the UK and have put a fix in place to remediate the issue. Mail routing has returned to a stable state and we are currently monitoring the situation

INVESTIGATING about 1 month ago - at 03/17/2026 10:59PM

We are currently investigating this issue.

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