No impact incident

SparkPost: Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)

Oct 30, 2026, 19:21 UTC

started

17:23 UTC

resolved October 31, 2026

22 h 02 min

duration

Affected: SMTP Delivery - USA

Current status of SparkPost: Operational — live SparkPost status

Timeline

Oct 30, 2026, 19:21 UTC
investigating
We are investigating a small increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the EU.)
Oct 30, 2026, 20:02 UTC
identified
We have identified the issue and are working on a resolution; delivery latencies are recovering.
Oct 31, 2026, 17:23 UTC
resolved
This incident has been resolved.

Updates as published by SparkPost (original).

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