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Most RecentMost ViewedMost LikesIntroducing 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). The 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. 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. Deprecation of Remote PowerShell (RPS) Protocol in Security and Compliance PowerShell Starting July 15, 2023, we will start deprecating the legacy RPS protocol in the Security and Compliance PowerShell module. Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online As we continue to enhance the security of our cloud, we are going to address the problem of email sent to Exchange Online from unsupported and unpatched Exchange servers. Sending From Email Aliases – Public Preview We started a journey toward making aliases first-class addresses in Exchange Online. We are excited to announce that we’ve reached the first milestone of this journey. Exchange Online to introduce External Recipient Rate Limit Today, we are announcing that, beginning in January 2025, Exchange Online will begin enforcing an external recipient rate limit of 2000 recipients in 24 hours. 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. 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. 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.
