DMARC (EN)

DMARC Architecture

flowchart TD     A[Sender] -->|Email| B[Recipient]     B --> SPF Check     B --> DKIM Check     SPF Check -->|Success| C[DMARC Policy]     SPF Check -->|Failure| C     DKIM Check -->|Success| C     DKIM Check -->|Failure| C     C -->|Pass| D[Email Delivered]     C -->|Quarantine| E[Email in Spam Folder]     C -->|Reject| F[Email Rejected]     G[DMARC Reporting] --> H[Domain Owner] 

In Context

• Typically used together with SPF and DKIM
• Related to: Email Authentication, Phishing Prevention, Domain Spoofing
• Example Use Case: Companies implement DMARC to ensure that only authorized emails are sent on behalf of their domains