Most RecentNewest TopicsMost LikesMost ViewedChange Optics Report released into Public Preview to showcase messages impacted by future changes We wanted to tell you about a new Change Optics Report that is now in Public Preview. Exchange Online EWS, Your Time is Almost Up We wanted to provide an update on Exchange Online EWS deprecation. Released: September 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. Cross-tenant Free/Busy, MailTips, and Calendar Sharing are moving to Cross-Tenant Access Policy We wanted to provide information related to migration of existing Exchange Online Organization Relationships to the new sharing model. Released: August 2026 Exchange Server Security Updates We have released Security Updates for Exchange Server SE. Exchange Server 2019 and 2016 ESU updates only. Released: September 2026 Skype for Business Server Security Updates Update on Exchange Server ADFS Modern Authentication support We are pleased to provide an update regarding Exchange Server ADFS Modern Authentication support. Exchange Server AD FS Modern Authentication: Expanded Outlook client support Expanded Outlook client support for Exchange Server AD FS Modern Authentication is here! 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.
