Mailgun incident: Inspect previews not rendering

Affected components

• Email Previews

1. resolvedJun 25, 2026, 20:35 UTC

   This incident has been resolved.

2. monitoringJun 25, 2026, 20:24 UTC

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

3. identifiedJun 25, 2026, 20:21 UTC

   The issue has been identified and a fix is being implemented.

4. investigatingJun 25, 2026, 20:03 UTC

   We are continuing to investigate this issue.

5. investigatingJun 25, 2026, 19:21 UTC

   We are currently investigating an issue with email previews not working. Outbound processing, inbound processing, logs and webhook delivery are operating normally.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Mailgun's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Anthropic: We’ve suspended access to Claude Mythos 5 and Claude Fable 5Critical · Jun 13, 2026, 00:50 UTC
• OVHcloud: [UK1][Containers & Orchestration] - Managed Kubernetes Service Incident NotificationMajor · Jun 25, 2026, 19:25 UTC
• Smartsheet: Increased spam activity with Smartsheet FormsMinor · Jun 18, 2026, 21:42 UTC
• Snyk: Third-Party Vendor Security Incident (Klue)Minor · Jun 19, 2026, 23:15 UTC
• OVHcloud: [UK1][Public Cloud] - API Incident NotificationMinor · Jun 22, 2026, 14:45 UTC
• Twilio: SMS Delivery Delays and Failures From a Subset of Twilio Sender IDs to SmartFren IndonesiaMinor · Jun 25, 2026, 03:32 UTC
• Twilio: Voice Call Failures and Audio Quality Degradation from Italy to a Subset of Twilio Italy Phone NumbersMinor · Jun 25, 2026, 11:13 UTC
• Akamai: DataStream Configuration IssuesMinor · Jun 25, 2026, 18:14 UTC

How often does Mailgun have incidents?

Mailgun reported 8 incidents in the last 90 days, 3 of them major or critical. A typical incident lasted 1h 1m. See Mailgun's uptime and incident history