Most RecentMost ViewedMost LikesUpdated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline We wanted to provide the updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline. Change 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. No Exchange Server Security Updates for April 2026 We are not releasing any Exchange Server Security Updates for April 2026. Streamlined Moderation Approvals, Now in All Outlook Clients We wanted to let you know about upcoming changes to Exchange Online message moderation. Update to EWS Access for Kiosk / Frontline Worker Licensed Users We wanted to provide an update on EWS access for Kiosk / Frontline Worker licensed users. Deprecation of the -Credential Parameter in Exchange Online PowerShell Exchange Online PowerShell -Credential parameter will be deprecated soon. Announcing General Availability (GA) of the New Message Trace in Exchange Online We are excited to announce the GA of the new Message Trace in the Exchange admin center (EAC) in Exchange Online. Limiting Onmicrosoft Domain Usage for Sending Emails We are announcing that all Exchange Online customers who send external email should start switching to custom (aka vanity) domain names. Announcing Public Folder Migration Scripts with Modern Authentication Support We are excited to announce that we have updated the following scripts for migrating public folders from Exchange Server to Exchange Online to support Modern authentication. 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).
