To make your on-premises mailboxes work with %BRAND_OFFICE_365_SHORT% in a hybrid setup or to protect your on-premises mailboxes ...

To make your on-premises mailboxes work with %BRAND_OFFICE_365_SHORT% in a hybrid setup or to protect your on-premises mailboxes with Exchange Online Protection, you need to first set up outbound and inbound connectors. We provide step-by-step instructions to help you get everything set up.