KnowBe4 incident

Protect | Web Access - Error Sending Emails (UK Only)

Minor Resolved View vendor source →

KnowBe4 experienced a minor incident on September 21, 2026 affecting Web Access, lasting 22h 54m. The incident has been resolved; the full update timeline is below.

Started
Sep 21, 2026, 09:32 AM UTC
Resolved
Sep 22, 2026, 08:27 AM UTC
Duration
22h 54m
Detected by Pingoru
Sep 21, 2026, 09:32 AM UTC

Affected components

Web Access

Update timeline

  1. investigating Sep 21, 2026, 09:32 AM UTC

    We have received reports that users are unable to send emails via Web Access (Secure Message Portal) in the UK region, with Error "503 Service Unavailable". We are investigating this issue and will update this page when we have more information.

  2. monitoring Sep 21, 2026, 02:36 PM UTC

    We’ve implemented a fix and are monitoring the results.

  3. monitoring Sep 21, 2026, 02:38 PM UTC

    We are continuing to monitor for any further issues.

  4. resolved Sep 22, 2026, 08:27 AM UTC

    This incident has been successfully resolved and all systems are fully operational.