Most RecentNewest TopicsMost LikesMost ViewedRetirement 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. 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. Notes From the Field: Finding and Remediating EWS App Usage Before Retirement We wanted to share some tips on how to find out details of EWS usage in your tenant. Updated Requirements for SMTP Relay through Exchange Online Today, we are announcing an update to our requirements for SMTP relay through Exchange Online. More Efficient Bulk Operations with PowerShell Parallelism We wanted to share a new method to help with your Exchange Online bulk operations. Cross-Tenant Message Recall in Exchange Online We wanted to announce cross-tenant Message Recall in Exchange Online! Introducing MTA-STS for Exchange Online We have been validating our implementation of the MTA-STS standard and are now pleased to announce support for MTA-STS for all outgoing messages from Exchange Online. Exchange Online EWS, Your Time is Almost Up We wanted to provide an update on Exchange Online EWS deprecation. Introducing Exchange Online Delicensing Resiliency to protect against unintended delicensing actions We are announcing a feature that allows admins to add protection against accidental delicensing of Exchange Online mailboxes. Deprecation of the -Credential Parameter in Exchange Online PowerShell Exchange Online PowerShell -Credential parameter will be deprecated soon.
