Fastmail - Notice history

All systems operational

General Availability - Operational

99.93% uptime
Aug 2026 · 100.0%Sep · 100.0%Oct · 99.80%

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Aug 2026
Sep 2026
Oct 2026

Web client and mobile app - Operational

99.99% uptime
Aug 2026 · 100.0%Sep · 99.97%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

Login & sessions - Operational

99.93% uptime
Aug 2026 · 99.79%Sep · 100.0%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

Mail delivery - Operational

100.0% uptime
Aug 2026 · 100.0%Sep · 100.0%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

Mail access (IMAP/POP) - Operational

99.99% uptime
Aug 2026 · 100.0%Sep · 99.97%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

Calendar (CalDAV) - Operational

99.99% uptime
Aug 2026 · 100.0%Sep · 99.97%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

File storage (WebDAV) - Operational

99.99% uptime
Aug 2026 · 100.0%Sep · 99.97%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

Contacts (CardDAV) - Operational

99.99% uptime
Aug 2026 · 100.0%Sep · 99.97%Oct · 100.0%

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Aug 2026
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Oct 2026

Support Tickets - Operational

100.0% uptime
Aug 2026 · 100.0%Sep · 100.0%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

www.fastmail.com - Operational

100.0% uptime
Aug 2026 · 100.0%Sep · 100.0%Oct · 100.0%

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Aug 2026
Sep 2026
Oct 2026

Notice history

View current status

Oct 2026

Interrupted access to Fastmail services
ResolvedPartial outage5 hours 23 minutes
  • Resolved
    UTC
    Resolved

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

  • Monitoring
    UTC
    Monitoring

    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.

  • Investigating
    UTC
    Investigating

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

Support emails not generating tickets
ResolvedDegraded performance55 hours 43 minutes
  • Resolved
    UTC
    Resolved

    Emails sent to our support team are being received and processed normally again. Any emails sent during this time have now been received, and we’ll respond as soon as possible.

  • Investigating
    UTC
    Investigating

    We're currently looking into an issue where emails sent to support@fastmail.com and support@fastmail.help are not being generated as support tickets. Users who need to contact support can use our support form: https://support.fastmail.com/support/

Sep 2026

Replies sent using masked email addresses are bouncing
ResolvedDegraded performance11 hours 12 minutes
  • Resolved
    UTC
    Resolved

    Our developers have resolved the issue. An update we made wasn't fully applied, causing messages sent from masked email addresses to bounce.

    If you were affected, you can resend any messages that bounced.

  • Identified
    UTC
    Identified

    Our developers have identified the issue and are working towards a fix.

  • Investigating
    UTC
    Investigating

    We're currently experiencing an issue where replies sent from masked email addresses are bouncing with an error instead of being delivered. Our team is investigating the issue.

    As a workaround, please add the email address you're looking to send emails from under Settings → My email addresses. You'll then be able to send emails from that address.

Interrupted access to Fastmail services
ResolvedPartial outage1 hour 8 minutes
  • Resolved
    UTC
    Resolved

    A server error occurred that temporarily prevented some users from accessing Fastmail services. We have resolved the issue. No mail has been lost.

  • Monitoring
    UTC
    Monitoring

    We believe that we have resolved the issue that was preventing some users from accessing Fastmail services. We are continuing to monitor. No mail has been lost.

  • Investigating
    UTC
    Investigating

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

Aug 2026

Interrupted access to Fastmail services
ResolvedPartial outage8 hours 16 minutes
  • Resolved
    UTC
    Resolved

    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.

  • Monitoring
    UTC
    Monitoring

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

  • Update
    UTC
    Update

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

  • Investigating
    UTC
    Investigating

    A small number of users are experiencing issues with accessing Fastmail services. We are currently investigating this incident with our network provider.

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