Buildkite experienced a minor incident on September 1, 2026 affecting Email Notifications, lasting 1h 19m. The incident has been resolved; the full update timeline is below.
Affected components
Email Notifications
Update timeline
- identified Sep 01, 2026, 03:32 PM UTC
We are experiencing delivery issues with email notifications due to an issue with an upstream provider.
- identified Sep 01, 2026, 04:19 PM UTC
Our on-call engineers are working on failing over to an alternative upstream email provider to restore outbound email notifications. No other Buildkite services have been impacted by this disruption.
- monitoring Sep 01, 2026, 04:38 PM UTC
We are seeing successful email deliveries and are monitoring processing of our outbound email queue.
- resolved Sep 01, 2026, 04:52 PM UTC
Our outbound email queue has finished processing all previously failed deliveries. Email notifications are processing successfully.