Exchange 2016 and 2019 Security Updates End With ESU in October 2026: What to Check This Month If you still run Exchange Server 2016 or 2019 on premises, Microsoft’s own September 2026 update notes contain a date... Sep 26, 2026 5 min read Exchange
September 2026 Exchange Server Security Updates (KB5121608): Three Vulnerabilities Worth Patching Now Microsoft’s September 2026 Exchange Server security updates (KB5121608) address nine vulnerabilities, three of them serious enough that any Exchange admin... Sep 23, 2026 5 min read Exchange
How to Investigate a Compromised Exchange Server: A Practical Incident Response Checklist (Exchange 2016/2019) The exact checklist for triaging a suspected Exchange compromise: web shell locations, IIS log indicators, mailbox export/permission abuse, transport rule tampering, and what to preserve before remediating. Sep 6, 2026 4 min read Exchange / Security
Fix Hybrid Topology Option Not Available in Hybrid Configuration Wizard Running the Hybrid Configuration Wizard should let you choose your hybrid topology, but sometimes that option simply is not there.... Dec 14, 2025 2 min read Microsoft
Exchange Server 2016/2019 end of support Exchange Server 2016 and Exchange Server 2019 reached end of support on October 14, 2025. That date matters more than... Dec 14, 2025 3 min read Exchange / Microsoft
Finding the Real Creation Date of Any Exchange Mailbox with PowerShell “When was this mailbox actually created” comes up more often than you’d expect, in offboarding audits, license reconciliation, and the... Dec 13, 2025 3 min read Exchange / Microsoft
