Title: Users can't reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online User impact: Users can't reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. Current status: We're investigating a potential issue with Exchange Online and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: We're looking into a potential problem impacting Microsoft Purview User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue with Microsoft Purview and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: Potential issues accessing Microsoft OneDrive content User impact: Users may be unable to access OneDrive content and may notice delays or navigation errors. Current Status: We're investigating a potential issue and checking for impact to your organization. We'll provide an update within one hour.
Title: Potential issues accessing SharePoint Online sites User impact: Users may be unable to access SharePoint Online sites and may notice delays or navigation errors. Current Status: We're investigating a potential issue and checking for impact to your organization. We'll provide an update within one hour.
Title: Users may not be able to access Microsoft Viva Glint User impact: Users may not be able to access Viva Glint. Current status: We're investigating a potential issue with Viva Glint and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: Users can't reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online User impact: Users can't reply or reply-all to email messages sent to Microsoft 365 groups in Exchange Online. Current status: We're investigating a potential issue with Exchange Online and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: Some users’ email messages may not be quarantined and fail to be stored in the quarantine folder User impact: Users’ email messages may not be quarantined and might fail to be stored in the quarantine folder. More info: Some legitimate email messages are not being delivered to the intended recipient and cannot be released through the normal Microsoft Defender quarantine workflow. Current status: We're reviewing support case details to determine our next troubleshooting steps. Scope of impact: This issue may impact users attempting to have email messages quarantined in Exchange Online. This section may be updated as the investigation progresses. Next update by: Thursday, September 24, 2026, at 1:30 PM UTC
Title: Potential issues accessing mailboxes via one or more connection methods User impact: Users may experience errors or failures when accessing their mailbox via one or more Exchange Online connection methods. Current status: We're investigating a potential issue and checking for impact to your organization. We'll provide an update within 60 minutes.
Title: Some users may be unable to search mailbox or Address Book content in Exchange Online across connection methods User impact: Users may be unable to search mailbox or Address Book content in Exchange Online across connection methods. Current status: We've received support cases indicating that some users can't search mailbox or Address Book content in Exchange Online across connection methods. We're reviewing our service telemetry to isolate the root cause of impact and develop a remediation strategy. Scope of impact: Some users attempting to search mailbox or Address Book content in Exchange Online across connection methods may be affected. This section may be updated as our investigation progresses. Next update by: Thursday, September 24, 2026, at 1:00 AM UTC
Title: Some users may experience unexpected application crashes for Microsoft Teams on macOS devices User impact: Users may experience unexpected application crashes for Microsoft Teams on macOS devices. More info: Impact is specific to users who have updated to their macOS devices to version 27.2 beta. Current status: We've identified a significant increase in Microsoft Teams application crashes affecting macOS devices on version 27.2 beta and are investigating the underlying cause. We're continuing our analysis of crash telemetry and related diagnostic data to determine the source of impact and develop a remediation plan. Scope of impact: Impact is specific to users experiencing unexpected application crashes for Microsoft Teams on version 27.2 beta macOS devices. Next update by: Friday, September 18, 2026, at 3:30 PM UTC
Title: We're looking into a potential problem impacting Microsoft Teams User impact: We're looking into a potential problem impacting Microsoft Teams Current status: We're investigating a potential issue with Microsoft Teams and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: Users may be unable to load SharePoint Online sites or pages and receive an error message User impact: Users may be unable to load SharePoint Online sites or pages and receive an error message. More info: The error message states: "Sorry, something went wrong: Thread was being aborted." Current status: We're investigating a potential issue with SharePoint Online and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: Some users in the United States may be unable to access Microsoft 365 services User impact: Users in the United States may be unable to access Microsoft 365 services. Current status: We're reviewing service monitoring telemetry and associated reports to isolate the root cause, in order to develop a remediation plan. Scope of impact: Impact is specific to users in the United States attempting to access Microsoft 365 services. This information may be updated as our investigation continues. Next update by: Wednesday, September 16, 2026, at 3:30 PM UTC
Title: Some users may intermittently be unable to launch Microsoft Teams from the web or desktop clients User impact: Users may intermittently be unable to launch Microsoft Teams from the web or desktop clients. Current status: We're investigating a potential issue in which some users may intermittently be unable to launch Microsoft Teams from the web or desktop clients and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: We're looking into a potential problem impacting Microsoft Purview User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue with Microsoft Purview and checking for impact to your organization. We'll provide an update within 30 minutes.
Title: Some users are unable to send or receive Exchange Online email through the native iOS mail app User impact: Users are unable to send or recieve Exchange Online email through the native iOS mail app. Current status: We're investigating a potential issue with Exchange Online and checking for impact to your organization. We'll provide an update within 60 minutes.