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Resend Outage History

Every past Resend outage tracked by IsDown, with detection times, duration, and resolution details.

There were 81 Resend outages since February 2024. The 55 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor February 27, 2026

February 2026: Increase latency in email sending

Detected Feb 27, 2026 12:55 PM EST · Resolved Feb 27, 2026 1:32 PM EST · Duration 37 minutes

Resend experienced increased latency in email sending for 37 minutes, causing delays for emails sent via their SMTP service and API while still accepting messages. The team identified the root cause and implemented mitigation measures to restore normal sending speeds.

Minor February 24, 2026

February 2026: Delay in email sending

Detected Feb 24, 2026 2:23 PM EST · Resolved Feb 24, 2026 4:02 PM EST · Duration about 2 hours

Resend experienced increased latency in their email sending service, causing delays for users sending emails through both their SMTP service and API. The issue was investigated and resolved with a fix deployed after 1.7 hours of service degradation.