Expired60% confidenceFactExact time

全球电子邮件流量中超过45%是垃圾邮件

2

Sources

60%

Confidence

Short-term (~14 days)

Relevance

8/12/2026

First Seen

Valid until: 8/26/2026(expired)

Sources

SPF、DKIM与DMARC详解：邮件身份验证配置指南

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