Outage in Mailgun
Elevated 401 errors in US Region
Resolved MajorIncident Report
Summary AI Generated
Mailgun's API in the US region experienced elevated 401 authentication errors, causing some requests to incorrectly fail. The issue affected API functionality for 10 minutes before a fix was deployed and systems returned to normal operation.
Some requests may be incorrectly failing with 401 error codes in our US region.
Components affected
Mailgun APITrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 1 month ago - at 03/19/2026 06:53PM
A fix has been deployed and systems are back to normal.
IDENTIFIED
about 1 month ago - at 03/19/2026 06:43PM
Some requests may be incorrectly failing with 401 error codes in our US region.
Latest Mailgun outages
Elevated Timeouts for Validations - 12 days ago
Elevated 500 errors on Messages endpoint in US - 22 days ago
Intermittent API Errors in US Region - about 2 months ago
Intermittent Email Validation Errors - 2 months ago
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