SparkPost incident

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

Minor Resolved View vendor source →

SparkPost experienced a minor incident on May 18, 2025 affecting SMTP Delivery - USA, lasting 4h 5m. The incident has been resolved; the full update timeline is below.

Started
May 18, 2025, 02:58 PM UTC
Resolved
May 18, 2025, 07:03 PM UTC
Duration
4h 5m
Detected by Pingoru
May 18, 2025, 02:58 PM UTC

Affected components

SMTP Delivery - USA

Update timeline

  1. investigating May 18, 2025, 02:58 PM UTC

    We are investigating an increase in delivery latency for a small percentage of outbound messages. (NOTE: This does not impact our customers hosted in the EU.)

  2. monitoring May 18, 2025, 03:11 PM UTC

    Latencies are now back to normal. We will continue monitoring, but do not expect any further deviation.

  3. resolved May 18, 2025, 07:03 PM UTC

    Latencies have remained normal since the last update. We are confident the situation is fully resolved.