Microsoft 365 Roadmap

Exchange
High Volume Email for Microsoft 365

Feature details and release plans from a build snapshot of Microsoft's official roadmap feed.

All Microsoft 365 updates
Product
Exchange
Release status
Launched
RSS publication

Feature overview

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.

Expected release date

March CY2026
Preview date: April CY2024

Source: Microsoft 365 Roadmap RSS (build snapshot) Feature ID: 382633

RSS snapshot built . Refreshed on rebuild and deployment.

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