Optimizely experienced a minor incident on September 16, 2026 affecting Campaign E-Mail Submission via SMTP, lasting 23m. The incident has been resolved; the full update timeline is below.
Affected components
Campaign E-Mail Submission via SMTP
Update timeline
- identified Sep 16, 2026, 08:33 AM UTC
Starting around 10:00 CEST processing of emails submitted via our SMTP API is delayed. We already identified the underlying problem and are in the process of fixing the issue.
- resolved Sep 16, 2026, 08:56 AM UTC
The issue has been fixed and all delayed emails have been processed.