Defense In-Depth Exchange Security MDO

Defender for Office 365 Dual Use / Defense In-Depth

This brief post highlights the differences in feature availability depending on how your MX records are configured—specifically, whether they point directly to Exchange Online Protection (EOP), which is the recommended setup, or if you’re routing mail through a third-party email filtering solution before Microsoft Defender for Office 365 (MDO). While this overview is intentionally concise, […]

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