Microsoft 365 suite Outage History

The outage began on Jul 30, 2025 10:33 PM UTC with a degraded experience across multiple Microsoft 365 services. Exchange Online was inaccessible by any connection method, Microsoft Teams could not load meeting notes during meetings, and Loop components could not modify sensitivity labels, with other Microsoft 365 workloads also affected. Users likely experienced delays or partial failures across these services during this incident.

The outage lasted about 2 hours and 26 minutes and was resolved by Jul 31, 2025 12:59 AM UTC. The Microsoft 365 status page posted 2 updates during the incident to communicate progress and resolution.

Administrators attempting to access the Microsoft 365 admin center faced login and navigation issues, hindering administrative tasks such as user and license management. The issue appeared limited to the admin center and did not indicate a broader impact on end-user services.

The outage began at 12:58 AM UTC and was resolved by 1:59 AM UTC, lasting about one hour. The Microsoft 365 status page issued 2 updates during the incident, first noting an investigation and later confirming restoration of admin center access.

An outage affected Microsoft 365 services, with issues reported across multiple components. The problem began at Jun 16, 2025 11:06 PM UTC when the Microsoft 365 status page posted a warning that users may experience issues, notably with Microsoft Teams and Exchange Online. Microsoft indicated it was investigating the impact and would provide an update within 30 minutes. The disruption lasted roughly 1 hour and 15 minutes and was resolved by Jun 17, 2025 12:21 AM UTC as service returned to normal.

The provider issued two status updates during the incident, documenting the progression from the initial warning to the resolution. While the impact centered on Teams and Exchange Online, other Microsoft 365 services may have been affected for some users.

Microsoft 365 experienced a brief period of degraded service as the status page moved to a warning while the team investigated reports of issues. They noted an uptick in user-reported issues above their alert threshold, but no specific impact within the Microsoft 365 suite was identified. The provider issued two official updates and the service returned to normal about an hour later, from Jun 12, 2025 7:04 PM UTC to Jun 12, 2025 8:09 PM UTC.

A brief partial outage affected some Microsoft 365 services, causing intermittent access and latency for a subset of users. The incident began at 8:34 PM UTC and was resolved by 8:48 PM UTC, lasting about 14 minutes. The Microsoft 365 status page indicated that some users may intermittently be unable to access or experience latency across various services, with errors such as 503 Service Temporarily Unavailable observed by affected users. The service issued 2 updates during the incident and subsequently returned to normal; no clear geographic pattern was noted.

Microsoft 365 experienced a brief access issue in the Japan region caused by a third-party networking problem. Users in Japan may have been unable to access Microsoft 365 services for a short period, with the outage lasting about 6 minutes. The outage began at 1:23 AM UTC and was resolved by 1:29 AM UTC. According to the official status updates, the incident transitioned from up to degraded and back to normal as service telemetry was analyzed, and the root cause was described as network-related. The impact was geographically limited to the Japan region, and services recovered quickly.

The outage began at May 6, 2025 2:18 PM UTC with a warning that users may experience issues across multiple Microsoft 365 services, including Microsoft Teams. Microsoft noted that telemetry was being reviewed to isolate the root cause and determine next troubleshooting steps. The incident lasted approximately 1 hour and 11 minutes and was resolved by May 6, 2025 3:29 PM UTC. The provider issued 2 status updates during the incident, describing the ongoing investigation and the path to resolution. Impact was limited to a subset of users served by some Microsoft 365 tenants.

An outage affected sign-in to the Microsoft Defender XDR portal within Microsoft 365. Affected users reported being unable to sign in and encountering a sign-in loop when trying to access Defender XDR. The impact appeared limited to the Defender XDR portal and did not indicate a broader impact on other Microsoft 365 services. The outage began on Apr 30, 2025 1:48 AM UTC and was resolved by Apr 30, 2025 4:58 AM UTC, lasting about 3 hours and 10 minutes.

The Microsoft 365 status page tracked the issue as a degraded service during the event, with two official updates issued by the provider describing the investigation and subsequent restoration of Defender XDR sign-in. The issue was resolved and Defender XDR sign-in returned to normal after the second update.

Admins were unable to access the Microsoft 365 admin center, hindering management tasks for about 1 hour and 21 minutes. The outage began on Apr 15, 2025 6:18 PM UTC and was resolved by Apr 15, 2025 7:39 PM UTC. The Microsoft 365 status page posted two updates during the incident, first noting a potential issue with admin center access and later confirming the restoration of access.

Microsoft 365 experienced a partial outage affecting Microsoft Teams meeting management and Exchange Online mailbox access for a subset of users. Some users reported being unable to create, update, cancel, RSVP, or forward Teams meetings, and in some cases could not access their Exchange Online mailbox via any connection method.

The outage began at 9:09 AM UTC and lasted about 3 hours and 29 minutes, with resolution by 12:38 PM UTC. Microsoft posted two status updates during the incident, noting that teams were reviewing telemetry to isolate the source and implement a fix.