Resend incident

Email sending error

Resolved after 1 hour 23 minutes, affecting Batch Emails and General API and 1 more, on April 10, 2026.

monitoring Apr 10, 2026, 12:05 PM UTC

The fix has been pushed to the General API and we are now monitoring the situation.

Started
Apr 10, 2026, 10:56 AM UTC
Resolved
Apr 10, 2026, 12:20 PM UTC
Duration
1h 23m
Detected by Pingoru
Apr 10, 2026, 10:56 AM UTC

Affected components

Batch EmailsGeneral APISingle EmailSMTPBroadcast Emails

Update timeline

  1. investigating Apr 10, 2026, 10:56 AM UTC

    We are currently investigating an issue affecting email sending. At this time, you may encounter 404 errors when sending emails via our SMTP service and API.

  2. identified Apr 10, 2026, 11:16 AM UTC

    We’ve identified the root cause and are working on a fix. We’ll share updates as soon as more information becomes available.

  3. monitoring Apr 10, 2026, 11:25 AM UTC

    A fix has been applied for Email Sending and SMTP, and we are now monitoring the situation. You may still notice errors on our general API endpoints.

  4. monitoring Apr 10, 2026, 12:05 PM UTC

    The fix has been pushed to the General API and we are now monitoring the situation.

  5. resolved Apr 10, 2026, 12:20 PM UTC

    We have resolved the underlying issue and service has been resumed.

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