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Microsoft Moves Cross-Tenant Calendar Sharing to Cross-Tenant Access Policies
Microsoft is changing how organizations share Free/Busy availability, MailTips, and calendar data across different Microsoft 365 tenants. This change comes…
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Exchange Server SE CU1 Delayed as Microsoft Prioritizes Security FixesIf you’ve been wondering what happened to Exchange SE CU1, you’re not alone. Microsoft has published a new blog post… -
Microsoft’s June 2026 Exchange Server Updates Fix OWA XSS VulnerabilityMicrosoft has rolled out the June 2026 security updates for Exchange Server. These patches are intended to strengthen email security…
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Microsoft Expands ESU Program for Legacy Exchange and Skype for BusinessMicrosoft has committed to providing security updates for all old versions of Exchange Server and Skype for Business. This new…
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CISA and NSA Outline New Security Best Practices for Microsoft Exchange ServersThe U.S. Cybersecurity and Infrastructure Security Agency (CISA) and the National Security Agency (NSA) have issued updated guidance to help…
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Microsoft Exchange Server Security Flaw Opens Door to Admin Privilege EscalationMicrosoft has issued an advisory warning customers of a critical security flaw in Exchange Server hybrid deployments. The vulnerability could…
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Microsoft to Block Legacy Exchange Public Folder MigrationsMicrosoft is phasing out support for native public folder migrations from Exchange Server 2010 and earlier to Exchange Online. Organizations…
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Microsoft Announces Extended Security Update Program for Skype for Business 2015/2019 and Exchange 2016/2019Microsoft has announced an Extended Security Update program for Exchange 2016 and 2019, as well as Skype for Business 2015…
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Exchange Server Subscription Edition (SE) is Here — And it Changes Everything for IT TeamsMicrosoft has officially launched Exchange Server Subscription Edition (SE) for commercial customers. This new release adopts a subscription-based model, departing…
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Configured Exchange Server for High Availability? You Could Still Face an Extended OutageHigh Availability (HA) was introduced in Exchange 2010 and since then has become the mainstay of message continuity in organizations.…
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Microsoft Releases April 2025 Hotfix Updates for Exchange ServerMicrosoft has released the April 2025 Hotfix Updates for Exchange Server 2019 and Exchange Server 2016. The latest updates address… -
PSA: Exchange Server 2016 and 2019 Support Ends in 6 MonthsMicrosoft has issued a reminder to administrators: Exchange Server 2016 and 2019 will officially reach end of support this October.…
