Mailgun outage on April 15, 2026
Apr 15, 08:34 PDTResolved - This incident has been resolved.Apr 15, 07:02 PDTMonitoring - A fix has been implemented and we are monitoring the results.Apr 15, 06:42 PDTIdentified - The issue has been identified and a fix is being implemented.Apr 15, 06:40 PDTInvestigating - We are currently investigating an issue where customers making HTTPS requests to our API without Server Name Indication (SNI) enabled are being presented with an expired SSL/TLS certificate. This results in certificate validation failures for affected clients.
Deterministic readout · awaiting AI summary pass
Incident detected
Minor confidence crossed the incident threshold for TLS Certificate Validation Errors for Clients Without SNI.
Marked resolved
The incident was closed after 45 min of observed impact.
No per-source signal payloads were preserved in this incident's snapshot window.
Confidence scoring
45.00The incident reached 45.00 peak confidence across available stored status snapshots.
User reports
0 / 15mNo elevated user-report volume was preserved in the incident window snapshots.
Status samples
0 affectedThe incident row exists, but the bounded snapshot window does not include affected status samples.
Recovery signal
ResolvedRecovery was recorded at Wed, Apr 15, 2026, 04:19 PM UTC.
Mailgun users likely saw failed connections, degraded availability, or session instability for this Email API service. The incident reached Minor severity and lasted 45 min. The stored report window does not show a preserved user-report spike.