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TLS Certificate Validation Errors for Clients Without SNI

Resolved incidentMajor1 affected service

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Timeline

Incident updates

Every update Mailgun posted, oldest to newest, exactly as it appeared on their official status page.

  1. Investigating

    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.

  2. Identified

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

  3. Monitoring

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

  4. Resolved

    This incident has been resolved.

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