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. Released: July 2026 Exchange Server Security Updates We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only. 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. 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. No Exchange Server Security Updates for May 2026 We are not releasing any Exchange Server Security Updates for May 2026. 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. General Availability of Mailbox Import and Export Microsoft Graph APIs Announcing General Availability of Mailbox Import and Export Microsoft Graph APIs. 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. Modernizing DNS Security for Exchange Online Mail Flow We wanted to provide a few updates related to modernizing DNS Security in Exchange Online.
