2. DMARC Failure Reports

Failure reports 包含 transmission and DMARC authentication details, 通常在 Mail Receiver 检测到 DMARC failure 后几乎立即发送. 它们由 RFC 9989 的 ruf 和 fo tags 控制. Report generators MUST 尝试向每个 URI delivery, MUST verify external destinations, 在没有 specific agreements 时 MUST NOT 考虑 psd=y DMARC Policy Records 中的 ruf, 并且 MUST implement outgoing report rate limits.