Microsoft confirms Exchange Online error misclassifying legitimate emails as phishing threats.

Microsoft has announced a phased disablement plan for EWS in Exchange Online and Microsoft 365. Here's what you need to know.

Microsoft confirms EWS shutdown in Exchange Online by 2027 and urges admins to migrate to Microsoft Graph APIs.

CISA has issued an emergency directive ordering all Federal Civilian Executive Branch (FCEB) agencies to mitigate a critical Microsoft Exchange hybrid vulnerability tracked as CVE-2025-53786 by Monday ...

Microsoft says an Exchange Online issue that mistakenly quarantined legitimate emails last week was triggered by faulty heuristic detection rules designed to block credential phishing campaigns.

Microsoft has confirmed that a faulty anti-phishing detection rule designed to stop credential theft campaigns mistakenly ...

Microsoft Exchange administrators running versions older than March 2023 need to update or they won’t get the latest security mitigations, says an expert. But, David Shipley added, even better advice ...

Microsoft will remove the -Credential parameter from Exchange Online PowerShell by June 2026, forcing admins to adopt MFA.

On Monday, Microsoft released the last major update for Exchange Server 2019. The aging Exchange Server is set to lose support on Oct. 14, 2025. This final update (2025 H1 Cumulative Update (CU15) ...

Missing emails? Exchange Online is tagging legitimate messages as spam - here's what to do ...

A critical vulnerability in Microsoft Exchange Server remains unpatched on nearly 30,000 systems worldwide, raising concerns about potential exploitation in hybrid cloud environments. The ...