Litmus incident

Multiple failures due to upstream service provider

Major Resolved View vendor source →

Litmus experienced a major incident on October 20, 2025 affecting Litmus Application and AOL Mail (Chrome) and 1 more component, lasting 1d 4h. The incident has been resolved; the full update timeline is below.

Started
Oct 20, 2025, 09:58 AM UTC
Resolved
Oct 21, 2025, 02:07 PM UTC
Duration
1d 4h
Detected by Pingoru
Oct 20, 2025, 09:58 AM UTC

Affected components

Litmus ApplicationAOL Mail (Chrome)AOL Mail (Edge)Email AnalyticsApple Mail 16 (macOS 13)Apple Mail 16 Dark (macOS 13)Color Blindness (Simulated)G Suite (Chrome)G Suite (Edge)G Suite (Firefox)

Update timeline

  1. monitoring Oct 20, 2025, 09:58 AM UTC

    An upstream service provider has been experiencing problems since 08:11 UTC affecting some features. Their services are now recovering. We're monitoring for residual problems.

  2. monitoring Oct 20, 2025, 09:58 AM UTC

    We are continuing to monitor for any further issues.

  3. identified Oct 20, 2025, 01:21 PM UTC

    The upstream service provider issues are ongoing and affecting multiple other services, such as Litmus Previews and Litmus Analytics. We are attempting to fix the issue and are working with the service provider to restore functionality.

  4. monitoring Oct 20, 2025, 10:43 PM UTC

    The upstream service provider issues have resolved. We're monitoring for any residual issues.

  5. resolved Oct 21, 2025, 02:07 PM UTC

    These issues have been resolved.