Sending errors in US

What to do

• Check whether you use Mailgun API in us. 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 5h 15m it lasted.

  Anything that failed between 2025-09-12 10:07 UTC and 2025-09-12 15:21 UTC may need a replay.

• Subscribe to Mailgun's feed to hear about the next one first. RSS feed

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

Updates from Mailgun 10

1. investigatingSep 12, 2025, 10:07 AM UTC

   We are currently investigating reports of sending errors in US regions.

   provider

2. investigatingSep 12, 2025, 10:28 AM UTC

   We are continuing to investigate this issue.

   provider

3. investigatingSep 12, 2025, 10:49 AM UTC

   We are continuing to investigate this issue.

   provider

4. investigatingSep 12, 2025, 11:14 AM UTC

   We are continuing to investigate this issue.

   provider

5. monitoringSep 12, 2025, 12:03 PM UTC

   A fix has been implemented and we are monitoring the results.

   provider

6. identifiedSep 12, 2025, 12:57 PM UTC

   We are continuing to work to stabilize things at this time. We have no ETA.

   provider

7. identifiedSep 12, 2025, 1:42 PM UTC

   Error rates are normalizing as we continue to work to fix the issue.

   provider

8. monitoringSep 12, 2025, 1:57 PM UTC

   A fix has been implemented and we are monitoring the results.

   provider

9. monitoringSep 12, 2025, 2:48 PM UTC

   Systems have normalized, we are continuing to monitor for any issues.

   provider

10. resolvedSep 12, 2025, 3:21 PM UTC

    All systems are operating normally at this time. Our engineers continue to monitor our systems for any recurrence or new issues.

    provider

Corrections

None so far.

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