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. 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. 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. Tell us how you use ObjectGuid, SamAccountName, and DistinguishedName in Exchange Online We wanted to ask how you use Guid, SamAccountName, and DistinguishedName in Exchange Online. 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. General Availability of Mailbox Import and Export Microsoft Graph APIs Announcing General Availability of Mailbox Import and Export Microsoft Graph APIs. Cross-Tenant Message Recall in Exchange Online We wanted to announce cross-tenant Message Recall in Exchange Online! Introducing Exchange Online Tenant Outbound Email Limits We’re introducing new tenant-level outbound email limits (also known as the Tenant External Recipient Rate Limit or TERRL).
