Companies/SparkPost/Incidents

SparkPost: Email delivery in US region affected

Affected components: SMTP Delivery (Outbound Message Delivery) - SMTP Delivery - USASMTP Delivery - USA

Timeline of updates

1. investigating2026-03-12 06:51 UTC

   We are currently investigating issues with delivery of email impacting US region.

2. monitoring2026-03-12 07:48 UTC

   System is fully recovered and under monitoring.

3. investigating2026-03-12 08:00 UTC

   Email delivery in US is impacted, experiencing elevated delays.

4. monitoring2026-03-12 10:03 UTC

   System functionality has been fully restored and all emails are being transmitted correctly without added latencies; we are actively monitoring.

5. resolved2026-03-12 11:25 UTC

   This incident has been resolved.

Changes Rewindex caught on this incident

• Mar 12Major incident: Email delivery in US region affected

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).

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