Join us June 17–18 for a deep dive into Copilot Control System—live expert-led sessions and Q&A on data security, agent lifecycle, adoption, and more! Learn more >
Most RecentMost ViewedMost LikesExchange Server Roadmap Update Today, we are providing an update on our product roadmap for Microsoft Exchange Server, and our next milestones in the Exchange Server journey. 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) starting March 2026. 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. Released: May 2025 Exchange Server Hotfix Updates We have released Hotfix Updates for Exchange Server 2016 and Exchange Server 2019. Introducing more control over Direct Send in Exchange Online Read about a new feature that gives you more control over Direct Send in Exchange Online. Directory Based Edge Blocking Now Available for Public Folders & Dynamic Distribution Groups Announcing the availability of Directory-Based Edge Blocking feature for mail enabled public folders (MEPF) and dynamic distribution groups (DDG). Updates to High Volume Email (HVE) Public Preview We are excited to share some updates to High Volume Email (HVE) Public Preview. 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. 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).
