Technologies that analyse and control email flow based on content, sender, and threat indicators.
Email filtering encompasses technologies that analyse email and make decisions about delivery—blocking, quarantining, or allowing messages based on various criteria. Filtering examines sender reputation, content, attachments, links, and threat intelligence. Inbound filtering protects against external threats; outbound filtering prevents data loss and ensures compliance. Email filtering operates at multiple layers—gateway, cloud, and endpoint—providing defence in depth.
Why It Matters
The DSC Perspective:
Email filtering is your primary defence against email-borne threats. Multiple filtering layers provide better protection than single-point solutions. Regularly review filtering effectiveness and adjust policies.