Is One down?
Last checked 8m agoNo incidents right now.
One is operational right now. Last checked 8m ago; the most recent incident resolved 8d ago.
Real-time One status, recent outages, and incident history — pulled directly from One's official status page at https://status.one.com every 5 minutes. Pingoru tracks 14 One services and has captured 38 incidents in the last 90 days (99.13% uptime). Get email, Slack, Discord, or webhook alerts the moment One reports a new incident — free for 5 monitors, no credit card.
Recent outages & incidents
Past 90 days-
Timeline · 3 updates
- identified · Sep 04, 2026, 10:52 AM UTC
Due to temporary capacity issues at Microsoft, emails to Microsoft servers may be delivered with a delay. If you receive a bounce with the subject “Delivery delayed”, this is an expected consequence of the current outage. No action is required on your part. The email will be delivered automatically as soon as the receiving email provider, Microsoft, has resolved the issue.
- monitoring · Sep 04, 2026, 01:47 PM UTC
Microsoft is accepting incoming emails again. Messages that previously received a “Delivery delayed” notice due to delays on Microsoft’s side are now being delivered gradually. We will continue monitoring the situation until all backlogs have been processed.
- resolved · Sep 04, 2026, 09:47 PM UTC
Email delivery issues with Microsoft has now been fixed, and all systems are verified to be working as expected again. If you are still having problems accessing related services with us, please contact us on chat or email here: https://www.one.com/chat.
Latest: Email delivery issues with Microsoft has now been fixed, and all systems are verified to be working as expected again. If you are still having problems accessing related services w…
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- Mail services
Timeline · 1 update
- investigating · Sep 04, 2026, 09:08 AM UTC
We are currently experiencing issues with our mailservices. Our Engineering team is doing all they can to get our systems back to normal as soon as possible. No data will be lost because of this issue. We will keep you updated on the progress and resolution of this issue.
Latest: We are currently experiencing issues with our mailservices. Our Engineering team is doing all they can to get our systems back to normal as soon as possible. No data will be lost b…
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- Website Builder
Timeline · 3 updates
- identified · Sep 02, 2026, 10:14 AM UTC
We are currently seeing issues with images not loading for some Website Builder websites. We are working to fix this issue, and will update here when its done.
- identified · Sep 02, 2026, 11:40 AM UTC
Images are now loading again in Website Builder. If you keep having issues, reach out at https://one.com/chat
- resolved · Sep 02, 2026, 11:40 AM UTC
This incident has been resolved.
Latest: This incident has been resolved.
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- WebmailMail services
Timeline · 3 updates
- investigating · Sep 02, 2026, 09:15 AM UTC
We are currently experiencing issues with our webmail. Our Engineering team is doing all they can to get our systems back to normal as soon as possible. No data will be lost because of this issue. We will keep you updated on the progress and resolution of this issue.
- investigating · Sep 02, 2026, 09:17 AM UTC
We are continuing to investigate this issue.
- resolved · Sep 02, 2026, 09:44 AM UTC
Webmail access has now been fully restored, and all systems are verified to be working as expected again. If you are still having problems accessing related services with us, please contact us on chat or email here: https://help.one.com/hc/en-us/requests/new
Latest: Webmail access has now been fully restored, and all systems are verified to be working as expected again. If you are still having problems accessing related services with us, pleas…
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- Mail services
Timeline · 2 updates
- investigating · Sep 01, 2026, 07:14 AM UTC
We are currently experiencing issues with our webmail. Our Engineering team is doing all they can to get our systems back to normal as soon as possible. No data will be lost because of this issue. We will keep you updated on the progress and resolution of this issue.
- resolved · Sep 01, 2026, 07:45 AM UTC
Webmail access has now been fully restored, and all systems are verified to be working as expected again. If you are still having problems accessing related services with us, please contact us on chat or email here: https://help.one.com/hc/en-us/requests/new
Latest: Webmail access has now been fully restored, and all systems are verified to be working as expected again. If you are still having problems accessing related services with us, pleas…
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See the full One outage history
7 more incidents in the last 90 days, plus the full multi-year archive of per-service events and update timelines.
Browse One outage history →Or sign up free to get alerts when One breaks · 10 free monitors · No credit card
- Email delivery issues with Microsoft ResolvedStarted Sep 04, 2026, 10:52 AM UTC · Resolved Sep 04, 2026, 09:47 PM UTC · 10h 54m
- Email issue ResolvedStarted Sep 04, 2026, 09:08 AM UTC · Resolved Sep 04, 2026, 09:38 AM UTC · 29m
- Started Sep 02, 2026, 10:14 AM UTC · Resolved Sep 02, 2026, 11:40 AM UTC · 1h 26m
- Issues with webmail ResolvedStarted Sep 02, 2026, 09:15 AM UTC · Resolved Sep 02, 2026, 09:44 AM UTC · 29m
- Webmail issues ResolvedStarted Sep 01, 2026, 07:14 AM UTC · Resolved Sep 01, 2026, 07:45 AM UTC · 31m
- Issues with webmail ResolvedStarted Sep 01, 2026, 05:23 AM UTC · Resolved Sep 01, 2026, 06:26 AM UTC · 1h 3m
- Issues with calendar in webmail ResolvedStarted Aug 31, 2026, 08:42 AM UTC · Resolved Aug 31, 2026, 10:45 AM UTC · 2h 3m
- Issues with webmail ResolvedStarted Aug 31, 2026, 08:30 AM UTC · Resolved Aug 31, 2026, 08:35 AM UTC · 5m