WorkOS: Email delivery delays

Impact: majorStatus: resolvedStarted 2026-06-04 23:22 UTCResolved 2026-06-05 00:49 UTC (1.4 h)4 updatesSource: stspg.io

Summary

WorkOS reported a major AuthKit email-delivery degradation affecting customers without custom domains due to an upstream provider issue. It started 2026-06-04 23:22 UTC and resolved 2026-06-05 00:49 UTC, lasting 1 h 26 min; the provider scaled up backlog processing, and all queued messages were sent.

Machine-written from the archived incident (Sol). Check the timeline before relying on it.

Affected components: AuthKitCore Services - AuthKit

Timeline of updates

identified2026-06-04 23:22 UTC
Email delivery for customers without custom domains is delayed due to an issue with our upstream service provider.
identified2026-06-05 00:08 UTC
Our email provider is continuing to work through the backlog and has scaled up to speed up the process.
monitoring2026-06-05 00:34 UTC
Email delivery has recovered. We're continuing to monitor.
resolved2026-06-05 00:49 UTC
The backlog of messages have been sent and system performance has returned to its expected state. Sending delays occurred between 2:50pm – 5:18pm PT.

Rewindex changes for this incident

Major incident: Email delivery delays 2026-06-04 23:22 UTC

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). WorkOS profile · Recent WorkOS incidents · Markdown · JSON