Resolved after 30 minutes, affecting Batch Emails and Email Events and 1 more, on January 27, 2026.
Our systems have caught up with the delayed emails and are healthy again. No emails were lost during the period of degraded performance.
Affected components
Update timeline
- investigating Jan 27, 2026, 05:19 PM UTC
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.
- monitoring Jan 27, 2026, 05:43 PM UTC
We have identified the issue causing delays in email delivery. Our services are processing the backlog and should be up to date within a few minutes. Also, we want to make it clear that no emails were lost.
- resolved Jan 27, 2026, 05:50 PM UTC
Our systems have caught up with the delayed emails and are healthy again. No emails were lost during the period of degraded performance.
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Amazon Web Services