Microsoft just reached another important milestone in the Exchange Online modernization journey.
The Mailbox Import and Export APIs for Microsoft Graph are now Generally Available.
For organizations and solution developers modernizing mailbox data workflows, this release introduces a production-ready approach to programmatically import and export mailbox content directly through Microsoft Graph.
With GA, organizations now have a production-ready way to:
- Import and export Exchange Online mailbox data with full fidelity
- Build migration and mailbox movement workflows on Microsoft Graph
- Apply more granular access controls through Graph permissions
- Support primary and shared mailboxes in production scenarios
This release also reinforces Microsoft’s broader direction toward Graph-first development and continued movement away from legacy Exchange Web Services (EWS) dependencies.
Exported content is designed to preserve mailbox fidelity and should be treated as an export/import stream rather than a reusable interchange format.
If you tested this during preview, moving to GA should be straightforward for supported mailbox scenarios. Another clear signal that Microsoft’s Exchange ecosystem continues shifting deeper into Graph-first experiences.