Outage in Fastmail
Interrupted access to Fastmail services
Resolved Minor
October 07, 2026 - Started 4 days ago
- Lasted about 2 hours
Incident Report
Summary AI Generated
Fastmail experienced a ~2-hour disruption where some users were unable to access their accounts. The issue was traced to a single server failing to honor internal authentication for usernames containing periods (.). The problem was resolved with no mail lost.
Some users are experiencing interrupted access to Fastmail services. We're looking into this.
Components affected
Fastmail General AvailabilityTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
INVESTIGATING
4 days ago - at 10/07/2026 04:40AM
Some users are experiencing interrupted access to Fastmail services. We're looking into this.
MONITORING
4 days ago - at 10/07/2026 09:36AM
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.
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