Most RecentMost ViewedMost LikesAuto-Archiving for Exchange Online We are happy to announce the time-based archiving feature for Exchange Online users with archives. Dedicated Hybrid App: temporary enforcements, new HCW and possible hybrid functionality disruptions We are announcing enforcements to move customers along to using the dedicated hybrid app. Exchange Online ActiveSync Certificate-based Authentication endpoint changes We wanted to let you know about Exchange Online ActiveSync Certificate-based Authentication endpoint changes. Exchange Online Message Recall Updates We’re pleased to announce several more updates and improvements to Exchange Online message recall feature. Updates to Get-Contact and Set-Contact Cmdlets for “Contacts” Recipient Type in Exchange Online We will make a change to management of "Contact" Recipient Type objects in Exchange Online. Introducing Cloud-Managed Remote Mailboxes: a Step to Last Exchange Server Retirement We are excited to announced a feature that enables cloud management of email properties for users with remote mailboxes. New URL for Exchange admin center (EAC) in Exchange Online Today, we are announcing that we are introducing a new URL for accessing the Exchange admin center (EAC) in Exchange Online. 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) starting March 2026. 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). 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.
