Fastmail incident

Interrupted access to Fastmail services

Minor Resolved

Fastmail experienced a minor incident on October 7, 2026 affecting General Availability, lasting 5h 23m. The incident has been resolved; the full update timeline is below.

Started
Oct 07, 2026, 04:40 AM UTC
Resolved
Oct 07, 2026, 10:03 AM UTC
Duration
5h 23m
Detected by Pingoru
Oct 07, 2026, 04:40 AM UTC

Affected components

General Availability

Update timeline

  1. investigating Oct 07, 2026, 04:40 AM UTC

    Some users are experiencing interrupted access to Fastmail services. We're looking into this.

  2. monitoring Oct 07, 2026, 09:36 AM UTC

    We believe that we have resolved the issue that was preventing some users from accessing Fastmail services. The issue was isolated to a single server and was related to internal authentication not being honored for users with periods (.) in their usernames. We are continuing to monitor. No mail has been lost.

  3. resolved Oct 07, 2026, 10:03 AM UTC

    This incident has been resolved. No mail has been lost as a result of this incident.