M365 Archive

RM410245 - Microsoft 365: Multi-Geo In-Region Routing

Microsoft 365 Roadmap

Roadmap ID

410245

View in M365 Roadmap

Status

Launched

Release

General Availability
Preview

Last Updated

Jan 14, 2026

Published Aug 6, 2024

Platforms

Desktop
Mac
Web

Service

Microsoft 365
Exchange

Tag

Launched
General Availability
Preview
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

Summary

Multi-Geo In-Region Routing (IRR) enables customers to control the routing of inbound emails. Using IRR, customers can set the geo-region that inbound mail should be routed to for specific Accepted Domains.

Description

Multi-Geo In-Region Routing (IRR) enables customers to control the routing of inbound emails. Using IRR, customers can set the geo-region that inbound mail should be routed to for specific Accepted Domains.

GA date: October CY2025

Preview date: October CY2025