Resolved after 16 hours 26 minutes, affecting Gateway, on May 27, 2026.
As of 00:35 UTC - the small number of remaining Journal servers have returned to operational. Proofpoint will continue to monitor, but please feel free to open a case if you have any additional questions.
Affected components
Update timeline
- investigating May 27, 2026, 08:13 AM UTC
We are aware of an issue with the Gateway journal servers at the moment. This problem is isolated to journaling and does not affect inbound or outbound mail delivery. Our teams are currently investigating, and we will follow up as soon as we have more information.
- identified May 27, 2026, 10:55 AM UTC
The cause of the problem with the Gateway journal servers has been identified and engineering is now rolling out a fix. This problem is limited to journaling only, and does not affect inbound or outbound mail delivery. We will follow up as soon as we have further information.
- monitoring May 27, 2026, 12:52 PM UTC
A fix has now been applied in both EU and US regions. Journaling services are recovering. A very small number of tenants in the EU and US are still experiencing issues and we continue to work on finding the cause for those tenants. Journal emails are flowing again for the majority customers, but please bear in mind that some queuing for journaling may persist for affected tenants for a while. This problem is limited to journaling only, and does not affect inbound or outbound mail delivery.
- resolved May 28, 2026, 12:40 AM UTC
As of 00:35 UTC - the small number of remaining Journal servers have returned to operational. Proofpoint will continue to monitor, but please feel free to open a case if you have any additional questions.
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