In development
Exchange
Worldwide (Standard Multi-Tenant)
General Availability
Preview
March 2026
Description
High Volume Email is a new service for line of business applications and other high-volume SMTP scenarios that enables you to send internal messages beyond the current limits of Exchange Online.
Change History
October 4, 2025 at 12:00 AM
Updated
Release Date
Previous
September CY2025
New
March CY2026
Modified Date
Previous
2024-10-07T23:15:10.000Z
New
2025-10-03T22:00:02.000Z
Never Miss a Microsoft 365 Update
Join thousands of IT professionals who rely on DeltaPulse for real-time Microsoft 365 change intelligence, automated notifications, and community insights.