*For this entry exists the more relevant or more recent entry MC1113112
check before: 2025-12-01
Product:
Exchange
Platform:
Mac, Multi-Geo, Online, Web, Windows Desktop, World tenant
Status:
Launched
Change type:
Links:
Details:
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 Category:
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Scope:
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Release Phase:
General Availability, Preview
Created:
2024-08-06
updated:
2026-01-14
Public Preview Start Date
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Docu to Check
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MS workload name
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summary for non-techies**
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Direct effects for Operations**
Please, look at the most relevant linked item for details
explanation for non-techies**
Imagine you have a law firm with offices in different countries, and each office has its own mailbox for receiving legal documents. You want to make sure that any mail sent to the office in Germany stays in Germany, and mail sent to the office in the United States stays in the United States. This is because each country has its own rules about where data can be stored and processed.
Microsoft 365's Multi-Geo In-Region Routing (IRR) is like having a smart mail sorter at each office. When an email comes in, the sorter knows exactly which office it should go to based on the address on the envelope. This ensures that the mail stays in the right country, following local data laws.
With IRR, you can set specific rules for where emails should be routed based on the domain name. For example, emails sent to "germany-lawfirm.com" will be routed to Germany, while emails sent to "us-lawfirm.com" will go to the United States. This way, the emails are processed and stored in the region where they are supposed to be, helping your firm comply with data regulations.
This system is like having a regional post office that knows exactly where to send each piece of mail, ensuring it doesn't cross borders unnecessarily. It helps maintain data sovereignty, meaning your data stays under the control of the country it belongs to, which is crucial for compliance with local laws.
** AI generated content. This information must be reviewed before use.
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change history
| Date | Property | old | new |
| 2026-01-14 | RM Status | Rolling out | Launched |
| 2025-11-17 | RM Release | December CY2025 | October CY2025 |
| 2025-11-17 | RM Status | In development | Rolling out |
| 2025-11-17 | RM Description | 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. | 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. |
| 2025-08-09 | RM Release | October CY2025 | December CY2025 |
| 2025-08-09 | RM Preview | August CY2025 | October CY2025 |
| 2025-03-20 | RM Release | June CY2025 | October CY2025 |
| 2025-03-20 | RM Preview | April CY2025 | August CY2025 |
| 2025-01-14 | RM Release | January CY2025 | June CY2025 |
| 2025-01-14 | RM Preview | April CY2024 | April CY2025 |
| 2024-12-10 | RM Description | Multi-Geo In-Region Routing (IRR) enables customers to control the routing of inbound emails to comply with regional data regulations. IRR ensures emails sent to users within specific geo-regions are processed and stored in their respective region. By directing emails to Accepted Domains that are associated with specific geo-regions and users located in those same geo-regions, 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. | 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. |
| 2024-09-13 | RM Preview | November CY2024 | April CY2024 |
| 2024-09-04 | RM Description | Multi-Geo In-Region Routing enables customers with regional data compliance requirements to control the routing of inbound mail so that the mail enters Exchange Online in the geo-region hosting a specific user and the mail is fully processed and stored in the user's region, even if that user is in a different geo-region than the user's tenant. | Multi-Geo In-Region Routing (IRR) enables customers to control the routing of inbound emails to comply with regional data regulations. IRR ensures emails sent to users within specific geo-regions are processed and stored in their respective region. By directing emails to Accepted Domains that are associated with specific geo-regions and users located in those same geo-regions, 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. |
Last updated 1 month ago ago
