Slack incident

Upstream provider issue causing email delivery delays

Minor Resolved View vendor source →

Slack experienced a minor incident on January 22, 2026 affecting Login/SSO and Workspace/Org Administration, lasting 5d 20h. The incident has been resolved; the full update timeline is below.

Started
Jan 22, 2026, 10:00 PM UTC
Resolved
Jan 28, 2026, 06:30 PM UTC
Duration
5d 20h
Detected by Pingoru
Jan 22, 2026, 10:00 PM UTC

Affected components

Login/SSOWorkspace/Org Administration

Update timeline

  1. investigating Jan 22, 2026, 10:00 PM UTC

    An upstream provider is experiencing issues that are causing delays in some email delivery. We’ll be back with an update once things are resolved on their end.

  2. resolved Jan 23, 2026, 08:09 AM UTC

    Email delivery has returned to normal and all services are operating as expected. Thank you for your patience while we worked through this issue. We apologize for how this issue may have affected you and your business.