On the morning of June 17th, 2024, at approximately 10:15 CET, we began receiving reports from our customers about being unable to send emails. Additionally, some customers reported experiencing degraded performance. All of these reports originated from SaaS environments hosted in the UK1 data center.

Upon receiving these reports, our engineers immediately began an investigation and quickly identified the cause: long-running queries on the SQL server. A fix was implemented at 11:15 CET, leading to an immediate improvement.

We are pleased to report that the main issue was fully resolved by 11:50 CET. The entire disruption, from the initial report to the final resolution, lasted approximately one hour.