Rolling out
Microsoft 365
Exchange
Worldwide (Standard Multi-Tenant)
General Availability
Preview
Desktop
Mac
Web
October 2025
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.
Change History
November 13, 2025 at 2:00 AM
Updated
Description
Previous
Multi-Geo In-Region Routing (IRR) enables customers to control the routing of inbound emails to comply with regional data regulations. Using IRR, customers can set the geo-region that inbound mail should be routed to for specific Accepted Domains. By setting Accepted Domains to specific geo-regions and then adding users to that Accepted Domain that are located in the same geo-region as the Accepted Domain is set to route mail to, IRR ensures that emails are fully processed and stored in the user's region. This keeps data within the user’s Preferred Data Location (PDL), enhancing data sovereignty and compliance.
New
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.
Modified Date
Previous
2025-10-30T23:15:09.000Z
New
2025-11-13T00:15:06.000Z
October 31, 2025 at 12:00 AM
Updated
Status
Previous
In development
New
Rolling out
Release Date
Previous
December CY2025
New
October CY2025
Modified Date
Previous
2025-08-08T22:15:46.000Z
New
2025-10-30T23:15:09.000Z
August 9, 2025 at 12:00 AM
Updated
Release Date
Previous
October CY2025
New
December CY2025
Modified Date
Previous
2025-03-19T23:15:02.000Z
New
2025-08-08T22:15:46.000Z
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