Resolved after 1 hour 23 minutes, affecting Batch Emails and General API and 1 more, on April 10, 2026.
The fix has been pushed to the General API and we are now monitoring the situation.
Affected components
Update timeline
- 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.
- 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.
- 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.
- monitoring Apr 10, 2026, 12:05 PM UTC
The fix has been pushed to the General API and we are now monitoring the situation.
- resolved Apr 10, 2026, 12:20 PM UTC
We have resolved the underlying issue and service has been resumed.
Your product runs on more than Resend
Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.