Most RecentNewest TopicsMost LikesMost ViewedReminder: Exchange 2016 and 2019 ESU Program Ends in October 2026 We wanted to provide a reminder that Exchange 2016 and 2019 ESU program ends in October 2026. Cross-Tenant Message Recall in Exchange Online We wanted to announce cross-tenant Message Recall in Exchange Online! Upcoming retirement of OWA Light in Exchange Server We wanted to tell you that we will be retiring OWA Light in Exchange Server. Introducing EWSAllowedAppIDs: Preparing for the Final Phase of EWS Retirement We wanted to share details about the EWSAllowedAppIDs, to help you manage retirement of EWS applications in Exchange Online. Released: June 2026 Exchange Server Security Updates We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only. How to determine which Resource Mailboxes are being actively used Here are some tips on how to learn more about Exchange Online resource mailbox use. Writeback for Cloud-Managed Remote Mailboxes: Now in Public Preview We are happy to announce public preview of writeback for cloud-managed remote mailboxes! 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. Deprecating Legacy TLS and Endpoints for POP and IMAP in Exchange Online Exchange Online is deprecating old legacy TLS 1.0/1.1 endpoints for POP and IMAP clients. Give Us Feedback on Faster, Simpler Data Purging for Exchange Online Microsot Purview team is looking for feedback on Priority Cleanup improvements.
