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Optimizing Internal Communications with Microsoft 365 Exchange Online High Volume Email·MSFT +2.1%Critical Deadline Approaching: Microsoft Exchange 2010 Public Folder Migrations End October 2025·NVDA +0.2%Microsoft Extends Security Updates for Exchange Server and Skype for Business Until 2026: What IT Teams Need to Know·GOOGL +1.7%Prolonged Outlook.com Outage in Germany Highlights Cloud Reliability and Sovereignty Challenges·AMZN +1.1%End-of-Support on Oct 14, 2025: Three Secure Migration Paths for Privacy-First Firms·MSFT +2.1%Microsoft Exchange 2016/2019 End-of-Support: Plan Your Migration Now·NVDA +0.2%Microsoft 365 DNS Blunder Blocks OTP Emails: Key MFA Lessons Learned·GOOGL +1.7%Microsoft 365 Direct Send Abuse: How to Protect Against Phishing Attacks·AMZN +1.1%Optimizing Internal Communications with Microsoft 365 Exchange Online High Volume Email·MSFT +2.1%Critical Deadline Approaching: Microsoft Exchange 2010 Public Folder Migrations End October 2025·NVDA +0.2%Microsoft Extends Security Updates for Exchange Server and Skype for Business Until 2026: What IT Teams Need to Know·GOOGL +1.7%Prolonged Outlook.com Outage in Germany Highlights Cloud Reliability and Sovereignty Challenges·AMZN +1.1%End-of-Support on Oct 14, 2025: Three Secure Migration Paths for Privacy-First Firms·MSFT +2.1%Microsoft Exchange 2016/2019 End-of-Support: Plan Your Migration Now·NVDA +0.2%Microsoft 365 DNS Blunder Blocks OTP Emails: Key MFA Lessons Learned·GOOGL +1.7%Microsoft 365 Direct Send Abuse: How to Protect Against Phishing Attacks·AMZN +1.1%

Exchange Online

The latest Exchange Online coverage — news, analysis, and updates from the WindowsNews.AI desk.

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Bulk Email · Bulk Internal Messaging

Optimizing Internal Communications with Microsoft 365 Exchange Online High Volume Email

Modern enterprise environments thrive on the rapid, reliable dissemination of information. Whether this involves pushing automated IT alerts, distributing critical system notifications, or sending...

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Business Continuity · Cloud Email Services

End-of-Support on Oct 14, 2025: Three Secure Migration Paths for Privacy-First Firms

With Microsoft Exchange Server 2016 and 2019 reaching end-of-support on October 14, 2025, organizations relying on these platforms face critical security and compliance decisions. This impending...

SE Security Desk·54w ago
Cloud Migration · Cybersecurity

Microsoft Exchange 2016/2019 End-of-Support: Plan Your Migration Now

As Microsoft Exchange Server 2016 and 2019 approach end-of-support in October 2025, countless organizations find themselves at a digital crossroads, compelled to confront deep strategic questions...

SE Security Desk·54w ago
Authentication Workflow · Cloud Infrastructure

Microsoft 365 DNS Blunder Blocks OTP Emails: Key MFA Lessons Learned

A recent Microsoft 365 DNS misconfiguration caused widespread disruption to OTP (One-Time Password) email delivery, highlighting critical vulnerabilities in cloud-based authentication workflows. For...

SE Security Desk·54w ago
Cloud Security · Cloud Threat Landscape

Microsoft 365 Direct Send Abuse: How to Protect Against Phishing Attacks

Microsoft 365's Direct Send feature, designed to simplify internal email routing, has become an unexpected security vulnerability. Recent research reveals how threat actors exploit this legitimate...

SE Security Desk·55w ago
Cloud Security · Cyber Threats

Microsoft 365 Direct Send Exploit: How Phishers Bypass Email Security

A sophisticated phishing campaign exploiting Microsoft 365's Direct Send feature has security teams scrambling to update detection rules. This lesser-known SMTP protocol, designed for internal...

SE Security Desk·55w ago
Ciso · Cybersecurity

Microsoft 365 Direct Send Phishing: How to Protect Your Organization

Microsoft 365 tenants across the United States have recently become the focal point of a sophisticated, widespread phishing campaign that leverages a rarely-discussed but highly impactful...

SE Security Desk·55w ago
Access Control · Authentication

Microsoft 365 Security Upgrade 2025: Blocking Legacy Protocols for Enhanced Protection

Microsoft is taking a bold step forward in cybersecurity by announcing plans to block legacy authentication protocols across its Microsoft 365 suite in 2025. This major security enhancement, part of...

SE Security Desk·56w ago
Azure Active Directory · Business Continuity

Microsoft 365 Outage Exposes Cloud Risks, Urges Hybrid Resilience Strategies

The recent Microsoft 365 outage sent shockwaves through businesses worldwide, exposing the fragility of our cloud-dependent workflows. For nearly eight hours, organizations struggled with...

SE Security Desk·57w ago