RM382633 - Exchange: High Volume Email for Microsoft 365

Microsoft 365 Roadmap

Status

Launched

Release

General Availability
Preview

Last Updated

Apr 20, 2026

Published Feb 15, 2024

Service

Exchange

Tag

Launched
General Availability
Preview
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

Summary

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.

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.

GA date: March CY2026

Preview date: April CY2024