Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...

Microsoft has issued guidance to uninstall KB5074109 security update or switch to webmail after the patch caused Outlook ...

Microsoft has started blocking Intune-managed email access on non-compliant devices, impacting Outlook, Teams, and OneDrive ...

Microsoft has introduced a new Email Security Transparency Dashboard in Microsoft Defender for Office 365, offering customers visibility into threat detection metrics and benchmarking data. "At ...

Microsoft has rolled out new security requirements for high-volume email senders—domains that send more than 5,000 per day—that will take effect in May. Microsoft is mandating three authentication ...

Update, July 10, 2025: This story has now been updated with further information regarding the Microsoft Outlook email outage, including a statement from Microsoft. Microsoft Outlook is currently down ...

See how three organizations strengthen security and accelerate AI innovation with Microsoft’s family of security products.

Access to Microsoft’s cloud-based productivity tools was restored after a widespread disruption interrupted email, security ...