Exchange Online
The latest Exchange Online coverage — news, analysis, and updates from the WindowsNews.AI desk.
Outlook on the Web Gets ‘Reply with Template’ Rule, Slated for September 2026
Microsoft has added a long-requested automation feature to its Microsoft 365 roadmap: the ability for Outlook on the web to automatically reply to emails using a predefined template. The feature,...
Microsoft Will Disable Exchange Web Services in Two Phases Starting October 2026 — Here’s How to Prepare
Microsoft has set a firm deadline for the retirement of Exchange Web Services in Exchange Online, with global disablement beginning in October 2026 and a full shutdown by April 2027. The move forces...
CVE-2026-54998: Why Microsoft's Confidence Rating is Critical for Exchange Online EoP Defense
Microsoft’s Security Response Center (MSRC) has published CVE-2026-54998, a new elevation-of-privilege (EoP) vulnerability affecting Exchange Online. What makes this disclosure different from the...
Centralized Email Signature Governance in Microsoft 365: The Overlooked Compliance Shield
Email signatures are the digital equivalent of a business card handed out millions of times a day—yet for most organizations, they remain a chaotic, ungoverned afterthought. ITPro’s newly...
Microsoft Confirms Bug in Legacy Outlook for Mac That Blanks Email Body When Replying or Forwarding
A frustrating bug in legacy Outlook for Mac has been confirmed by Microsoft, causing the original message body to vanish whenever a user replies to or forwards an email. The confirmation came on June...
Exchange Online EWS Deadline Looms: Microsoft Deploys EWSAllowedAppIDs in June 2026
Microsoft is putting the final piece in place for the long-announced retirement of Exchange Web Services (EWS) in Exchange Online. In June 2026, the company will deploy a new control called...
Microsoft Confirms Exchange Online Lacks Native Resource Utilization Reports, Urges Admins to Use Calendar Queries
Microsoft’s Exchange Team confirmed on May 21, 2026, that Exchange Online provides no built-in utilization reports for resource mailboxes, forcing administrators to manually query calendar data to...
Defender for Office 365 Wins on Pre- and Post-Delivery Protection, Microsoft Benchmark Shows
Microsoft’s latest quarterly email security benchmark, published on June 15, 2026, declares Defender for Office 365 the clear winner over third-party secure email gateways (SEGs) in both pre- and...
Microsoft Delivers Final Ultimatum: TLS 1.0/1.1 Ends for Exchange Online POP3 and IMAP4 in July 2026
Microsoft has confirmed that Exchange Online will begin blocking all POP3 and IMAP4 client connections that still negotiate TLS 1.0 or TLS 1.1 starting in July 2026. After more than two years of...
DavMail 6.8 Adds Full Microsoft Graph UI for EWS Retirement Prep
DavMail 6.8 has landed as the newest iteration of the open-source Exchange and Microsoft 365 gateway, delivering a long-awaited upgrade that arms users for Microsoft’s impending phase-out of...
CVE-2026-48579 Exchange Online Info Disclosure: What Administrators Need to Know
Microsoft has officially listed CVE-2026-48579 as an information disclosure vulnerability affecting Microsoft Exchange Online, according to a recent entry in the Security Update Guide. The...
Microsoft Confirms Exchange Online Still Lacks Room Usage Report—Here’s How to Audit It Yourself
Microsoft’s Exchange Team confirmed yesterday that Exchange Online still doesn’t include a native report for resource mailbox utilization—meaning there’s no simple dashboard to see which...