Global: Issues with mail processing delays
Incident Report for Exclaimer Cloud
Resolved
Summary of impact: Between 00:00 - 05:30 UTC customers mail flow may have been delayed due to issues with the Exclaimer Cloud service.

Root cause: Preliminary investigation showed that our front-door proxy certificate that controls TLS connections between Office 365 and Exclaimer Cloud had expired.

Mitigation: Once our engineers had been made aware of the issue, an updated certificate was deployed to all regions between the hours of 04:00 - 05:30 UTC.

Next steps: We are currently investigating how this was not picked up by our SSL life-cycle management processes and more importantly, why our automated alert monitoring did not trigger our on-call NOC team at point of expiry.
Posted Feb 07, 2019 - 00:00 UTC