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Most RecentMost ViewedMost LikesThe way to control EWS usage in Exchange Online is changing We are announcing a change in behavior of the EWSEnabled tenant-wide switch in Exchange Online. Retirement of cloud archive mailbox access by using Exchange Server on-premises OWA Announcing retirement of OWA access to online archives for on-premises mailboxes. Announcing Public Preview of the New Message Trace in Exchange Online We are excited to announce that the Public Preview of the new Message Trace in the Exchange admin center (EAC) 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). Public Preview: High Volume Email for Microsoft 365 Today we’re thrilled to announce the public preview of High Volume Email (HVE) for Microsoft 365. Exchange Online to retire Basic auth for Client Submission (SMTP AUTH) Today, we are announcing that Exchange Online will permanently remove support for Basic authentication with Client Submission (SMTP AUTH) in September 2025. Retirement of Exchange Web Services in Exchange Online Today, we are announcing that on October 1, 2026, we will start blocking EWS requests from non-Microsoft apps to Exchange Online. EWS (Exchange Web Services) to Microsoft Graph Migration Guide Series A new initiative to help developers and IT admins transition from Exchange Web Services (EWS) to the new standard API for Microsoft 365. Graph API - Permanent Delete for Mailbox Items We wanted to share an update related to our long-term EWS deprecation in Exchange Online. Critical Update: ApplicationImpersonation RBAC Role Deprecation in Exchange Online We wanted to share an update on the ApplicationImpersonation RBAC Role Deprecation in Exchange Online.
