TopicMicrosoft 365 →
Simple definition
The antispam and antimalware filtering service of Microsoft 365 messaging.
Technical definition
EOP analyzes the messages of the ‘Stomp’ and ‘Outer’ via multiple layers of filtering, reputation and protection policies.
What’s the point? ?
Reduce spam, Landers and unwanted messages before delivery.
Concrete example
A suspicious message can be placed in quarantine before reaching the box of the user.
Common problems
- False positive
- Anti-spam policy too permissive
- Connector bypassing certain controls
Related terms
Exchange Online. · Defender for Office 365
To be noted: precise behaviors and commands may vary depending on the versions, products and architectures.