Resend experienced a minor incident on March 28, 2026 affecting Batch Emails and Single Email and 1 more component, lasting —. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Mar 28, 2026, 03:06 AM UTC
Status: Investigating We are currently investigating increased latency in email sending. At this time, you may experience delays when sending emails via our SMTP service and API. Affected components Single Email (Degraded performance) Broadcast Emails (Degraded performance) Batch Emails (Degraded performance)
- identified Mar 28, 2026, 03:35 AM UTC
Status: Identified We have identified the cause of increased latency in email sending. A subset of customers may experience delays when sending emails via our SMTP service and API. We are actively working on a resolution and will provide updates shortly. Affected components Single Email (Degraded performance) Broadcast Emails (Degraded performance) Batch Emails (Degraded performance)
- monitoring Mar 28, 2026, 03:44 AM UTC
Status: Monitoring We have resolved the issue causing increased latency in email sending. All emails should now be delivered without delay. Affected components Batch Emails (Operational) Single Email (Operational) Broadcast Emails (Operational)
- resolved Mar 28, 2026, 04:02 AM UTC
Status: Resolved We have resolved the issue causing increased latency in email sending. Emails are being delivered normally. Affected components Single Email (Operational) Broadcast Emails (Operational) Batch Emails (Operational)