Microsoft 365

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: Users are unable to view reporting metrics for Amplify Campaigns in SharePoint Online User impact: Users are unable to view reporting metrics for Amplify Campaigns in SharePoint Online. More info: Users can open Amplify Campaigns, but reporting metrics may fail to load. Affected users may receive the following error message: "Couldn't load data. Something went wrong and we couldn't get the data to display." Current status: We're reviewing support provided information to determine our next troubleshooting steps. Scope of impact: Your organization is affected by this event, and users attempting to view reporting metrics for Amplify Campaigns in SharePoint Online are impacted. Next update by: Wednesday, November 11, 2026, at 2:00 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: 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 intermittently unable to send email messages to Outlook.com, Hotmail.com, or Live.com email addresses User impact: Users may be intermittently unable to send email messages to Outlook.com, Hotmail.com, or Live.com email addresses. More info: Users may receive a Non-Delivery Report (NDR) reporting 550 5.7.1 or 550 5.7.23 due to Service Provider Foundation (SPF) violation. Current status: We've received reports indicating that some users may be unable to send email messages to Outlook.com, Hotmail.com or Live.com email addresses. We're requesting that affected users reach out to their support representatives and provide fresh Network Message IDs, fresh logs, and examples of impact users are facing in .eml format. These logs will aid in the root cause investigation into why impact persists, so we can identify a remediation plan. Scope of impact: Some users may be intermittently unable to send email messages to Outlook, Hotmail, and Live email accounts. Next update by: Wednesday, November 11, 2026, at 7:00 AM UTC

Title: Users are unable to view reporting metrics for Amplify Campaigns in SharePoint Online User impact: Users are unable to view reporting metrics for Amplify Campaigns in SharePoint Online. More info: Users can open Amplify Campaigns, but reporting metrics may fail to load. Affected users may receive the following error message: "Couldn't load data. Something went wrong and we couldn't get the data to display." Current status: We're reviewing support provided information to determine our next troubleshooting steps. Scope of impact: Your organization is affected by this event, and users attempting to view reporting metrics for Amplify Campaigns in SharePoint Online are impacted. Next update by: Wednesday, November 11, 2026, at 2:00 PM UTC

Title: External users’ replies to encrypted email messages may not be delivered in Exchange Online User impact: External users’ replies to encrypted email messages may not be delivered 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 may experience intermittent errors or failures when accessing Exchange Online through REST APIs User impact: Users may experience intermittent errors or failures when accessing Exchange Online through REST APIs. Current status: We're investigating an issue in which users may experience intermittent errors or failures when accessing Exchange Online through REST APIs. We're reviewing service telemetry to determine the underlying cause and identify the most effective remediation action. We'll provide an update within 30 minutes.

Title: SIP devices can't make or receive calls User impact: Users may be unable to make or receive call using SIP devices. More info: Once a SIP device attempts to perform its next synchronization, the device will disconnect. Users will be unable to log back into those devices and therefore can't make or receive calls using those SIP devices. Calling functionality using the Microsoft Teams web and desktop clients, or Teams Phone Devices are not impacted. Current status: We’ve identified the underlying root cause and we are working on developing a fix. Scope of impact: This issue could impact any SIP device. Next update: Wednesday, October 21, 2026 at 11:00 PM UTC

Title: SIP devices can't make or receive calls User impact: Users may be unable to make or receive call using SIP devices. More info: Once a SIP device attempts to perform its next synchronization, the device will disconnect. Users will be unable to log back into those devices and therefore can't make or receive calls using those SIP devices. Calling functionality using the Microsoft Teams web and desktop clients, or Teams Phone Devices are not impacted. Current status: We’ve identified the underlying root cause and we are working on developing a fix. Scope of impact: This issue could impact any SIP device. Next update: Wednesday, October 21, 2026 at 11:00 PM UTC

Title: Users may be unable to perform migrations User impact: Users may be unable to perform migrations More info: Migrations that use Migration Manager Platform (MMP) API will be impacted. These include migrations initiated from Microsoft 365 Admin Center and third-party migrations. Migrations using SPMT (Sharepoint Migration Tool) will not be impacted. Current status: After reviewing telemetry data, we’ve identified the source of the issue and have narrowed our investigation to the specific conditions contributing to the impact. We’re now assessing the most effective mitigation options and determining the actions required to restore normal service as quickly and safely as possible. Next update: Wednesday, October 21, 2026 at 1:00 PM UTC

Title: Some users are unable to join town hall meetings in Microsoft Teams and are redirected to a registration page User impact: Users are unable to join town hall meetings in Microsoft Teams and are redirected to a registration page. More info: This occurs when organizers create and publish town halls with registration disabled. Additionally, some users may find the Join option unavailable or unresponsive. Current status: We’ve confirmed that affected town halls are successfully created and published with registration disabled as intended. However, the attendee experience isn’t honoring this setting and users continue to be directed to a registration page. We're reviewing service monitoring telemetry to isolate the root cause and determine our next troubleshooting steps. Scope of impact: Your organization is affected by this event, and some users attempting to join town hall meetings in Microsoft Teams with registration disabled are impacted. Next update by: Monday, October 19, 2026, at 10:00 AM UTC

Title: Some users' calls are failing in Microsoft Teams User impact: Users' calls are failing in 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' mailbox syncing fails with an error in Exchange Online User impact: Users' mailbox syncing fails with an error in Exchange Online. Current status: We're investigating a potential issue with mailbox sync status in Exchange Online and checking for impact to your organization. We'll provide an update within 30 minutes.