Some customers using Sparkpost (US hosted) for email may be seeing delayed or slow sends

Incident Report for Iterable

Resolved

Sparkpost is reporting that full functionality has been restored. All alerts in Iterable have resolved and we are no longer seeing customer impact.
Posted Oct 28, 2026 - 13:45 PDT

Identified

Some customers using Sparkpost (US hosted) for email may be seeing delayed or slow sends. We are seeing only partial impact to our customers starting about 12:37pm PT and are actively monitoring updates from SparkPost. Messages will be retried and so no sends will be lost. Next update by 2pm PT.
Posted Oct 28, 2026 - 13:16 PDT
This incident affected: Global Campaign Sends.