Exchange Online
The latest Exchange Online coverage — news, analysis, and updates from the WindowsNews.AI desk.
Exchange Online Confirms No Native Room Mailbox Utilization Reports
Microsoft has confirmed that Exchange Online does not, and likely will not in the immediate future, offer a native utilization report for room or resource mailboxes. The confirmation came directly...
Microsoft mandates Entra ID for Exchange ActiveSync cert auth by end of 2026.
Microsoft announced on May 8, 2026, that it will retire direct certificate-based authentication for Exchange ActiveSync (EAS) in Exchange Online by the end of 2026. The decision forces organizations...
Microsoft Graph Mailbox Import/Export APIs Now GA, Replacing EWS
Microsoft has declared general availability for its Mailbox Import and Export APIs in Microsoft Graph, a milestone that hands Exchange Online developers a production-hardened replacement for the...
Exchange Online to Block TLS 1.0/1.1 for POP and IMAP by July 2026
Microsoft has set July 2026 as the final cutoff for Exchange Online POP3 and IMAP4 clients that still negotiate Transport Layer Security (TLS) versions 1.0 or 1.1. After that date, every connection...
Microsoft debuts DNSSEC wizard, DANE, MTA-STS controls for Exchange Online security
Exchange Online DNS Security: DNSSEC Wizard, DANE & MTA-STS Connector Controls Microsoft is rolling out a trio of DNS security enhancements for Exchange Online that promise to harden email...
Microsoft Mandates DNSSEC, MTA-STS for Exchange Online Email Security
Exchange Online DNSSEC Enablement: SMTP DANE, MTA-STS and mx.microsoft Modernizing DNS security for Exchange Online is no longer a niche transport tweak; it is becoming a central part of...
Microsoft's Exchange Online Change Optics Report enters public preview: A new tool for proactive mail flow management
Microsoft has launched the public preview of the Exchange Online Change Optics Report, a new reporting tool designed to help administrators identify messages that may be affected by upcoming changes...
Microsoft's Exchange Online Change Optics Report Enters Public Preview: Proactive Mail-Flow Monitoring for Admins
Microsoft has launched the Exchange Online Change Optics Report in Public Preview, giving administrators unprecedented visibility into upcoming mail-flow changes before they impact users. This new...
Microsoft Outlook Outage 2026: Sign-in Failures and Message Disruptions Hit Microsoft 365 Users
Microsoft Outlook experienced widespread service disruptions on March 15, 2026, affecting thousands of Microsoft 365 users across multiple regions. The outage primarily impacted Outlook.com web...
Exchange Online High Volume Email Reaches General Availability: What It Means for Enterprise Automation
Microsoft has announced General Availability for Exchange Online's High Volume Email feature, a significant development for organizations that rely on automated internal email communications. This...
Microsoft Tightens Graph API Email Permissions: What Developers Need to Know About Mail-Advanced Enforcement
Microsoft has announced a significant change to Graph API permissions that will fundamentally alter how applications can interact with email data in Exchange Online. Beginning September 16, 2024, the...
Exchange Server Turns 30: How Microsoft's Email Platform Became the Heart of Enterprise Identity and Security
Microsoft Exchange Server celebrates its 30th anniversary this year, marking three decades of evolution from a simple email system to the central nervous system of enterprise communication, identity...