Cloudflare Area 1 delivers integrated cloud-native email security to comprehensively protect against modern phishing attacks, Business Email Compromise (BEC), credential harvesting, and other targeted email-borne threats. Area 1 enhances Microsoft 365 built-in email security by preemptively identifying and blocking new phishing campaigns while insulating users from highly evasive multi-channel phishing attacks.

Cloudflare Area 1 email security is part of Cloudflare Zero Trust, a platform that includes ZTNA, SWG, RBI, CASB, DLP, and more.

https://www.cloudflare.com/plans/zero-trust-services/#overview