Outlook Newsletters will be available in the new Outlook for Windows and Web, allowing users to create, distribute, and track internal email newsletters. Public Preview starts mid-February 2025, with General Availability in August 2025. Access is controlled via OwaMailboxPolicy, and additional configuration is required for user access.
Applies to: Exchange Online · Microsoft 365 for the web · Microsoft 365 apps
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).