Most RecentNewest TopicsMost LikesMost ViewedCross-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. 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. Understanding the new 100 GB mailbox entitlement for Microsoft 365 Business suites We wanted to show Administrators how recent mailbox quota changes for Microsoft 365 Business suites will apply to their users. Exchange Online EWS, Your Time is Almost Up We wanted to provide an update on Exchange Online EWS deprecation. Take control of your EWSAllowedAppIDs list before EWS access changes We wanted to provide additional guidance on how admins should use the EWSAllowedAppIDs allow list during EWS deprecation. 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. Updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline We wanted to provide the updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline. Impact of Exchange Online EWS Deprecation on Hybrid Rich Coexistence and Cross-org Sharing We wanted to discuss how upcoming Exchange Online EWS retirement impacts our hybrid customers and cross-org sharing scenarios. 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. 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.
