Mailgun incident
HTTPS Tracking Certificate Creation / Renewal blocked by Let's Encrypt Outage
Resolved after 11 hours 37 minutes, affecting API, on July 21, 2025.
The current status of Let's Encrypt infrastucture is "[Identified] We have deployed mitigations for the failure of our internal DNS servers. Issuance of certificates is now succeeding, though we are still recovering from the resulting high traffic volumes." We are monitoring the situation and will update our status page accordingly.
Affected components
Update timeline
- identified Jul 21, 2025, 11:56 PM UTC
Let's Encrypt, the certificate issuer used for creating certificates on customer tracking domains is experiencing an outage (https://letsencrypt.status.io/). Attempting to generate or regenerate a tracking certificate will not succeed until service is restored.
- monitoring Jul 22, 2025, 05:22 AM UTC
The current status of Let's Encrypt infrastucture is "[Identified] We have deployed mitigations for the failure of our internal DNS servers. Issuance of certificates is now succeeding, though we are still recovering from the resulting high traffic volumes." We are monitoring the situation and will update our status page accordingly.
- resolved Jul 22, 2025, 11:33 AM UTC
This incident has been resolved.
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