SendGrid experienced a minor incident on November 20, 2025 affecting API v3 and SMTP and 1 more component, lasting 1d. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Nov 20, 2025, 06:56 PM UTC
Starting around 5:48AM PST on 11/20/2025, our engineers began investigating minimal, intermittent delays in API mail sending. Engineering is engaged and has redistributed traffic. Customers may see a brief ~50 ms increase in latency. The team is actively troubleshooting to ensure the delays do not persist. We will provide another update in 1 hour or as soon as more information becomes available.
- investigating Nov 20, 2025, 07:56 PM UTC
Our engineering team is continuing to investigate this issue. We will provide another update in 1 hour or as soon as more information becomes available.
- monitoring Nov 20, 2025, 08:30 PM UTC
Our engineers have implemented a fix and are monitoring system performance. All latencies are back to normal. We will provide another update in 1 hour or as soon as more information becomes available.
- monitoring Nov 20, 2025, 09:13 PM UTC
All latencies remain normal. Our engineers are continuing to monitor system performance to ensure latencies remain normal and will continue to monitor overnight. We will provide another update on Friday 11/21/2025 or as soon as more information becomes available.
- resolved Nov 21, 2025, 07:00 PM UTC
Our engineers have monitored the fix and confirmed that the issue causing minimal intermittent mail-send delays has been fully resolved. All services are now operating normally at this time.