Using classic Outlook for Windows in business environments
Hi,
This is something known from Microsoft:
https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect
***Outlook.com Service degradation Users may be unable to access their mailbox using any connection methods ***
User impact: Users may be unable to access their mailbox using any connection methods. More info: Impacted connection methods include, but may not be limited to: - Outlook.com - Outlook Mobile - Outlook desktop client
Current status: We've determined the cause of the issue and have started deployment of a fix. We expect the fix to take an extended period following our safe change management process.
Start time: Wednesday, July 9, 2025, at 10:20 PM UTC
Next update by: Thursday, July 10, 2025, at 10:30 AM UTC
Appreciate your patience while Microsoft works on it.