Optimizely: Delay of E-Mails Submitted via SMTP API

Optimizely · optimizely.comImpact: minorResolved2026-09-16 08:33 UTC

Public — what happened

Summary

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.

Timeline

Started — 2026-09-16 08:33 UTC
Last update — 2026-09-16 08:33 UTC
Resolved — 2026-09-16 09:09 UTC

Source of record: provider status page. Mirrored as reported; times in UTC.

With SquidGrid — where it starts on the route

Independent path health

The status page is the symptom. SquidGrid measures the paths that reach Optimizely against their own baselines — whether the routes carrying your traffic degraded, at which handoff, and who owns that stretch.

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