Most RecentNewest TopicsMost LikesMost ViewedReleased: June 2026 Exchange Server Security Updates We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only. Replacing IIS SMTP virtual server with Exchange Edge Transport How to go about replacing IIS SMTP virtual server with Exchange Edge Transport. Addressing Exchange Server May 2026 vulnerability CVE-2026-42897 We wanted to tell you how to address the Exchange Server May 2026 vulnerability CVE-2026-42897. Retirement of Direct Exchange ActiveSync Certificate-Based Authentication by End of 2026 We are announcing the deprecation of Exchange ActiveSync (EAS) certificate-based authentication (CBA) directly to Exchange Online. Update Your Exchange SE Hybrid On-premises Rich Coexistence to Graph Configure Exchange Server SE to move your Hybrid rich coexistence scenarios to Graph API calls. Released: May 2026 Exchange Server Hotfix Update We have released a Hotfix Update for Exchange Server SE. Announcing Period 2 Exchange 2016/2019 Extended Security Update (ESU) program We created a Period 2 ESU for Exchange customers who need extra time to migrate to Exchange SE. No Exchange Server Security Updates for April 2026 We are not releasing any Exchange Server Security Updates for April 2026. Announcing SMTP DANE & MTA STS Connector Modes in Exchange Online We wanted to announce SMTP DANE & MTA STS Connector Modes in Exchange Online. No Exchange Server Security Updates for March 2026 We are not releasing any Exchange Server Security Updates for March 2026.
