SendGrid outage on March 4, 2026
Mar 4, 07:30 PSTResolved - Our engineers have investigated and resolved the issues that began on 3/4/2026 from 8am PST to 3/9/2026 at 5pm PST that impacted the reporting for a subset of group unsubscribe and group resubscribe Event Webhooks. Users may have experienced issues with group unsubscribes and group resubscribes that were not processed, although the api calls for those events were processed. The issue has been resolved and all impacted services are operating normally.
Deterministic readout · awaiting AI summary pass
Incident detected
Minor confidence crossed the incident threshold for Retroactive Incident - Failures Processing Subset of Webhook Events.
Marked resolved
The incident was closed after 45 min of observed impact.
No per-source signal payloads were preserved in this incident's snapshot window.
Confidence scoring
25.00The incident reached 25.00 peak confidence across available stored status snapshots.
User reports
0 / 15mNo elevated user-report volume was preserved in the incident window snapshots.
Status samples
0 affectedThe incident row exists, but the bounded snapshot window does not include affected status samples.
Recovery signal
ResolvedRecovery was recorded at Wed, Mar 04, 2026, 04:15 PM UTC.
SendGrid users likely saw failed connections, degraded availability, or session instability for this Email API service. The incident reached Minor severity and lasted 45 min. The stored report window does not show a preserved user-report spike.