MailChimp incident

Mandrill/Transactional Delays

Minor Resolved View vendor source →

MailChimp experienced a minor incident on September 1, 2026, lasting 4h 8m. The incident has been resolved; the full update timeline is below.

Started
Sep 01, 2026, 04:19 PM UTC
Resolved
Sep 01, 2026, 08:27 PM UTC
Duration
4h 8m
Detected by Pingoru
Sep 01, 2026, 04:19 PM UTC

Update timeline

  1. resolved Sep 01, 2026, 08:27 PM UTC

    Engineers have addressed the issue that was causing sending delays with select Mandril/Transactional accounts. Sends are going out. We thank you for your patience.