EX1189768: Exchange Online Service Health Incident (False Positive)

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Nov 25, 2025, 5:30:17 PM (11 days ago) Nov 25
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Some users may be unable to search or see free/busy status of others in, or connect to classic Outlook desktop client.                                                                                                                                                                                      
Microsoft

Some users may be unable to search or see free/busy status of others in, or connect to classic Outlook desktop client

ID: EX1189768

Issue type: Incident

Status

False Positive

Impacted services

Exchange Online

Details

Title: Some users may be unable to search or see free/busy status of others in, or connect to classic Outlook desktop client

User impact: Users may be unable to search or see free/busy status of others in, or connect to classic Outlook desktop client.

More info: Impacted scenarios include, but aren't necessarily limited to, the following:

- Search

- Seeing free/busy status of others

- Connecting to Exchange Online mailboxes

- Setting Out of Office (OOF) status.

Final status: We've determined that this issue only impacts a small subset of users and a vast majority of users that have been receiving these updates aren't actually impacted by this event. For the small subset of users that are affected, we'll continue to provide updates separately. This communication will expire in 24 hours.

This is the final update for the event.

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