Microsoft Defender for Office 365 documentation
Control automatic external email forwarding in Microsoft 365
In Office 365 security, there are three main security services (or products) tied to your subscription type:
- Exchange Online Protection (EOP)
- Microsoft Defender for Office 365 Plan 1 (Defender for Office P1) MDO P1
- Microsoft Defender for Office 365 Plan 2 (Defender for Office P2) MDO P2