Back in October 2019, Microsoft included ARC support in their Microsoft 365 Roadmap, stating that “[ARC] is now enabled for Office 365 hosted mailboxes.” But at that time it could only be used between Office 365 tenants, or from Microsoft’s in-house services. However in June of 2022 they made it possible for each tenant to […]
![msft-using-arc-in-o365](https://dmarc.org/wp-content/uploads/2023/05/msft-using-arc-in-o365.png)