Fastmail Outage History

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Fastmail had 11 outages in the last 2 years totaling 8h 16m of downtime — averaging 0.5 incidents per month.

There were 11 Fastmail outages since September 3, 2025 totaling 8h 16m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://www.fastmailstatus.com

Minor August 25, 2026

Interrupted access to Fastmail services

Detected by Pingoru
Aug 25, 2026, 07:25 PM UTC
Resolved
Aug 26, 2026, 03:41 AM UTC
Duration
8h 16m
Affected: Login & sessions
Timeline · 4 updates
  1. investigating Aug 25, 2026, 07:25 PM UTC

    A small number of users are experiencing issues with accessing Fastmail service. We are currently investigating this incident.

  2. investigating Aug 25, 2026, 08:39 PM UTC

    We're continuing to investigate. A small number of users may experience issues accessing Fastmail services.

  3. monitoring Aug 26, 2026, 12:30 AM UTC

    We expect the service to be restored for affected users, and we are currently monitoring closely.

  4. resolved Aug 26, 2026, 03:41 AM UTC

    This incident has been resolved. Access to our services have been restored for affected customers. No mail has been lost, and we don't anticipate further issues.

Read the full incident report →

Minor May 27, 2026

Intermittent outbound delivery issues

Detected by Pingoru
May 27, 2026, 10:24 PM UTC
Resolved
May 27, 2026, 10:24 PM UTC
Duration
Timeline · 1 update
  1. resolved May 27, 2026, 10:24 PM UTC

    Type: Incident Affected Components: Mail delivery May 27, 22:24:00 GMT+0 - Investigating - We're investigating reports of outbound mail issues. Some users have been experiencing deferrals or bounce backs on outbound messages. May 28, 01:00:00 GMT+0 - Resolved - 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.

Read the full incident report →

Minor March 26, 2026

Interrupted access to Fastmail web and app services

Detected by Pingoru
Mar 26, 2026, 04:45 PM UTC
Resolved
Mar 26, 2026, 04:45 PM UTC
Duration
Timeline · 1 update
  1. resolved Mar 26, 2026, 04:45 PM UTC

    Type: Incident Duration: 2 hours and 19 minutes Affected Components: Web client and mobile app Mar 26, 16:45:00 GMT+0 - Investigating - Some customers are experiencing interrupted access to Fastmail services. We're looking into it. Mar 26, 18:13:00 GMT+0 - Monitoring - We have implemented a fix for the issue and are currently monitoring the result. No mail has been lost. Mar 26, 19:04:28 GMT+0 - Resolved - This incident has been resolved, and we do not anticipate any further issues. No mail has been lost.

Read the full incident report →

Minor January 16, 2026

Access to Fastmail services impacted

Detected by Pingoru
Jan 16, 2026, 09:30 PM UTC
Resolved
Jan 16, 2026, 09:30 PM UTC
Duration
Timeline · 1 update
  1. resolved Jan 16, 2026, 09:30 PM UTC

    Type: Incident Duration: 53 minutes Jan 16, 22:22:44 GMT+0 - Resolved - This incident has been resolved. Jan 16, 21:30:00 GMT+0 - Investigating - Access to Fastmail services has impacted all customers. We're looking into it. Jan 16, 21:45:00 GMT+0 - Monitoring - Access to our services is no longer impacted. We are continuing to monitor.

Read the full incident report →

Minor January 9, 2026

Interrupted access to Fastmail Services

Detected by Pingoru
Jan 09, 2026, 09:41 PM UTC
Resolved
Jan 09, 2026, 09:41 PM UTC
Duration
Timeline · 1 update
  1. resolved Jan 09, 2026, 09:41 PM UTC

    Type: Incident Duration: 6 minutes Affected Components: Mail access (IMAP/POP), Web client and mobile app Jan 9, 21:41:15 GMT+0 - Investigating - Some customers are experiencing interrupted access to Fastmail services. We're looking into it. Jan 9, 21:47:00 GMT+0 - Resolved - This incident has been resolved. No mail has been lost as a result of this incident, although delivery of some mail was delayed.

Read the full incident report →

Minor December 3, 2025

Some customers are unable to send messages

Detected by Pingoru
Dec 03, 2025, 02:59 AM UTC
Resolved
Dec 03, 2025, 02:59 AM UTC
Duration
Timeline · 1 update
  1. resolved Dec 03, 2025, 02:59 AM UTC

    Type: Incident Duration: 1 hour and 16 minutes Affected Components: Mail delivery Dec 3, 02:59:00 GMT+0 - Investigating - There is an internal forwarding issue affecting email sending. We are currently investigating. Dec 3, 03:49:30 GMT+0 - Monitoring - Email sending has resumed for affected users. We are actively monitoring this service for any further issues. Dec 3, 04:14:35 GMT+0 - Resolved - This incident has been resolved. No mail has been lost, and we don't anticipate further issues.

Read the full incident report →

Major November 18, 2025

Interrupted access to Fastmail services due to Cloudflare outage

Detected by Pingoru
Nov 18, 2025, 12:30 PM UTC
Resolved
Nov 18, 2025, 12:30 PM UTC
Duration
Timeline · 1 update
  1. resolved Nov 18, 2025, 12:30 PM UTC

    Type: Incident Duration: 3 hours and 23 minutes Affected Components: www.fastmail.com Nov 18, 12:30:00 GMT+0 - Identified - An outage at Cloudflare, our external web hosting provider, is preventing some users from accessing www.fastmail.com. Users should still be able to access webmail by going to [app.fastmail.com](http://app.fastmail.com) directly. Cloudflare hosts a large fraction of web content, so users may also see images or external links failing to load in emails. Nov 18, 15:53:08 GMT+0 - Resolved - Cloudflare has reported that this incident has been resolved.

Read the full incident report →

Minor October 28, 2025

Some users are experiencing delayed mail delivery.

Detected by Pingoru
Oct 28, 2025, 01:03 PM UTC
Resolved
Oct 28, 2025, 01:03 PM UTC
Duration
Timeline · 1 update
  1. resolved Oct 28, 2025, 01:03 PM UTC

    Type: Incident Duration: 1 day and 16 hours Affected Components: Mail delivery Oct 28, 13:03:00 GMT+0 - Investigating - Some users are experiencing delayed mail delivery. We’re looking into the issue. Oct 28, 13:43:00 GMT+0 - Resolved - This incident has been resolved. No mail has been lost as a result of this incident, although delivery of some mail was delayed.

Read the full incident report →

Minor September 17, 2025

Some users are experiencing delayed mail delivery

Detected by Pingoru
Sep 17, 2025, 01:47 PM UTC
Resolved
Sep 17, 2025, 01:47 PM UTC
Duration
Timeline · 1 update
  1. resolved Sep 17, 2025, 01:47 PM UTC

    Type: Incident Duration: 2 hours and 33 minutes Affected Components: Mail delivery Sep 17, 13:47:00 GMT+0 - Investigating - Some users are experiencing delayed mail delivery. We're looking into it. Sep 17, 14:50:48 GMT+0 - Investigating - Some users are still experiencing issues with delayed mail. We're continuing to look into this. Sep 17, 15:41:55 GMT+0 - Monitoring - We have resolved the issue that was causing delayed mail delivery. No mail has been lost. We're continuing to monitor. Sep 17, 16:19:49 GMT+0 - Resolved - The issue that was causing mail to be delayed has been resolved. No mail has been lost.

Read the full incident report →