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. 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. 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. Notes From the Field: Finding and Remediating EWS App Usage Before Retirement We wanted to share some tips on how to find out details of EWS usage in your tenant. 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. Updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline We wanted to provide the updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline. Exchange Online EWS, Your Time is Almost Up We wanted to provide an update on Exchange Online EWS deprecation. No Exchange Server Security Updates for April 2026 We are not releasing any Exchange Server Security Updates for April 2026. Deprecation of the -Credential Parameter in Exchange Online PowerShell Exchange Online PowerShell -Credential parameter will be deprecated soon. General Availability of Mailbox Import and Export Microsoft Graph APIs Announcing General Availability of Mailbox Import and Export Microsoft Graph APIs.
