[Monitoring] Email service slowness

We are currently experiencing slowness especially via IMAP, and are investigating what is causing this. Preliminary investigations indicate a possible Distributed Denial of Service attack and we are considering countermeasures to combat this.

We apologize for any inconvenience caused while we work to resolve this issue.

update 2025-09-11 00:30 CEST (2025-09-10 22:30 PM, 2025-09-10 6:30 PM EST, 2025-09-10 03:30 PM PST)

We are still seeing attacks mainly from Chinese IP addresses and are working to combat these more effectively.

update 2025-09-12 00:00 CEST (2025-09-12 22:00 PM, 2025-09-11 6:00 PM EST, 2025-09-11 03:00 PM PST)

Our mitigation measures are increasingly effective and services are now operating normally.


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