The affected services are operating normally, and we have completed the emergency maintenance. Message intake stopped during two short periods: 18:51–18:57 and 19:02–19:04 CEST. Some tracking requests failed, and webhook delivery was delayed during those periods. During the later emergency maintenance, some Sending API requests returned errors until about 20:04 CEST.

We have monitored the services after the maintenance and are marking this incident resolved. We are sorry for the disruption.

We will publish a public write-up after we confirm the full customer impact, cause, and follow-up actions.

Email submissions and message processing have resumed. We confirmed two short interruptions: 18:51–18:57 and 19:02–19:04 CEST. Some tracking requests failed and webhook delivery was delayed during those periods. Later, some Sending API requests returned errors; the last such error we observed was around 20:04 CEST. We are monitoring sending and processing, and we are still checking incoming mail, before we resolve this incident.

We are performing emergency maintenance to increase capacity. Brief service interruptions may occur during this work. We will provide another update when the maintenance is complete and service is stable.

We have identified an issue in the infrastructure that supports message processing. We are working to resolve it and will share another update when we have verified the result.