SparkPost incident

Partial Outage and Delivery Issues in US-West-2 Region

Resolved after 7 hours 29 minutes, affecting Transmissions API - USA and SMTP API - USA and 1 more, on July 24, 2026.

monitoring Jul 24, 2026, 05:29 PM UTC

We have implemented additional tuning to handle the significant influx of mail due to the AWS network outage and we are seeing improvement in delivery rates We are seeing significant recovery and expect most mail to be fully delivered in the next 30-35 minutes. Estimated time for full recovery is 80-90 minutes. We are continuing to look for additional optimizations and monitor the issue.

Other major vendors with incidents that started within 30 minutes of this one

Auth0 Outage Regional Service Disruption on Public Cloud Environments

Render Outage Service Disruption in Oregon

Okta Outage Service Disruption - Timeouts and Login Failures

Adobe Creative Cloud Outage Mixamo

Zendesk Outage Unable to Access Zendesk

Notion Outage Notion is down

And 2 more: Amazon Web Services, Cloudflare.

Started: Jul 24, 2026, 11:14 AM UTC
Resolved: Jul 24, 2026, 06:44 PM UTC
Duration: 7h 29m
Detected by Pingoru: Jul 24, 2026, 11:14 AM UTC

Affected components

Transmissions API - USASMTP API - USASMTP Delivery - USA

Update timeline

investigating Jul 24, 2026, 11:14 AM UTC

We are investigating delivery issues caused by an ongoing AWS US West 2 region outage. Customers may experience delays while we assess the impact to our service. We are actively monitoring the situation and will provide updates as more information becomes available.
identified Jul 24, 2026, 11:53 AM UTC

Outbound email delivery is blocked for our US West region. We working with our vendor resolve the issue. We are continuing to accept emails and queue them internally. We will deliver the messages as soon as the issue is resolved.
monitoring Jul 24, 2026, 12:08 PM UTC

We are starting to deliver mails in our US West region. We are working through the queued messages. We are continuing to monitor the issue and continuing to accept emails.
monitoring Jul 24, 2026, 01:16 PM UTC

We are still working through the queued messages. We are continuing to monitor the issue and continuing to accept emails.
monitoring Jul 24, 2026, 05:29 PM UTC

We have implemented additional tuning to handle the significant influx of mail due to the AWS network outage and we are seeing improvement in delivery rates We are seeing significant recovery and expect most mail to be fully delivered in the next 30-35 minutes. Estimated time for full recovery is 80-90 minutes. We are continuing to look for additional optimizations and monitor the issue.
resolved Jul 24, 2026, 06:44 PM UTC

This incident has been resolved.

Your product runs on more than SparkPost

Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.