Fastmail incident

Intermittent outbound delivery issues

Minor Resolved View vendor source →

Fastmail experienced a minor incident on May 27, 2026, lasting 2h 36m. The incident has been resolved; the full update timeline is below.

Started
May 27, 2026, 10:24 PM UTC
Resolved
May 28, 2026, 01:00 AM UTC
Duration
2h 36m
Detected by Pingoru
May 27, 2026, 10:24 PM UTC

Update timeline

  1. investigating May 27, 2026, 10:24 PM UTC

    We're investigating reports of outbound mail issues. Some users have been experiencing deferrals or bounce backs on outbound messages..

  2. resolved May 28, 2026, 01:00 AM UTC

    We identified a problem which caused intermittent outbound issues leading to some users experiencing deferrals or bounce backs. We have remediated the problem. No mail has been lost..