Nylas incident
[US] Elevated 500 Errors for Messages API Requests on IMAP Grants
Resolved after 3 hours 52 minutes, on August 6, 2026.
Error rates and request latency for the /messages API endpoint have remained at normal operating levels, and our monitoring confirms that the issue is no longer affecting customers. This incident is now resolved. Thank you for your patience while we worked to address it. If you require additional assistance, please contact [email protected].
Update timeline
- investigating Aug 06, 2026, 02:37 PM UTC
We are investigating elevated rates of HTTP 500 responses for the /messages API endpoint affecting IMAP grants in the US region. Some requests may fail as a result. The issue is not affecting grants for other providers, other API endpoints, or the EU region. The overall error rate remains low. We will provide another update as our investigation progresses.
- monitoring Aug 06, 2026, 04:36 PM UTC
Error rates and request latency for the /messages API endpoint have returned to normal operating levels. We will continue to monitor performance to confirm the mitigation remains effective.
- resolved Aug 06, 2026, 06:30 PM UTC
Error rates and request latency for the /messages API endpoint have remained at normal operating levels, and our monitoring confirms that the issue is no longer affecting customers. This incident is now resolved. Thank you for your patience while we worked to address it. If you require additional assistance, please contact [email protected].
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