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Buildkite

Delivery issues with email notifications

Degraded Lasted 1h 20m · started · Buildkite's page

Level
confirmed
Worst impact
Degraded
Components
Email Notifications
Down Index
19of 100

What to do

  • Check whether you use Buildkite Email Notifications. Check your stack

    Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.
  • Confirm your retries, queues and scheduled jobs caught up after the 1h 20m it lasted.

    Anything that failed between 2026-09-01 15:32 UTC and 2026-09-01 16:52 UTC may need a replay.
  • Subscribe to Buildkite's feed to hear about the next one first. RSS feed

    https://down.guide/feed?provider=buildkite works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Buildkite 4

  1. identified

    We are experiencing delivery issues with email notifications due to an issue with an upstream provider.

    provider

  2. identified

    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.

    provider

  3. monitoring

    We are seeing successful email deliveries and are monitoring processing of our outbound email queue.

    provider

  4. resolved

    Our outbound email queue has finished processing all previously failed deliveries. Email notifications are processing successfully.

    provider

Reports count in aggregate; nothing about you is shown.

Corrections

None so far.

Something wrong on this page? Report an error or send us a note. Every fix is listed here.

Questions about DWN-4951a3b7e9

Is Buildkite still down?

No, this incident was resolved 2026-09-01 16:52 UTC. For Buildkite's live state, see https://down.guide/buildkite.

How long did it last?

1h 20m, from 2026-09-01 15:32 UTC to 2026-09-01 16:52 UTC, by the times Buildkite posted.

What was affected?

Buildkite named Email Notifications.

What caused it?

Buildkite hasn't published a root cause. If it does, it shows here.

Where does this come from?

Buildkite's official status page, https://www.buildkitestatus.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.