your mailbox has temporarily moved to Microsoft Exchange server

When your mailbox has temporarily moved to a Microsoft Exchange server, it typically indicates that your mailbox is in the process of being migrated or moved to a different server or environment. This can happen in various scenarios, such as during a local mailbox move, a cross-forest mailbox move, or a remote mailbox move in hybrid deployments between on-premises Exchange and Microsoft 365 or Office 365.

During this temporary state, you may experience some limitations or changes in functionality until the move is fully completed. If you encounter issues or need to check the status of your mailbox move, you can use Exchange management tools or PowerShell commands to monitor the progress and resolve any potential errors that arise during the migration process.

If you need specific troubleshooting steps or further assistance regarding your mailbox move, please provide additional details about the situation.