Use for authorized email security review including phishing analysis, header authentication (SPF/DKIM/DMARC), BEC patterns, and mailbox token abuse research.
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tessl review fix ./skills/email-security/SKILL.mdNOW: 确认授权(分析样本邮件 / 租户配置评审)NOW: 不向真实用户二次投递恶意样本ACT: 头认证 → 内容/URL → 附件沙箱 → 租户控制面建议□ 完整原始头:Received 链、From/Return-Path 一致性
□ SPF/DKIM/DMARC 对齐结果
□ URL 沙箱与附件静态(联合 malware-analysis)
□ 仿冒品牌与回复地址差异
□ 租户:反钓鱼策略、外部标记、MFA、OAuth app 同意| 工具 | 用途 |
|---|---|
| 邮件客户端「查看源」 | 头 |
| dig/nslookup | SPF/DMARC 记录 |
| urlscan / 沙箱 | 链接与附件 |
| 租户管理中心 | 策略 |
references/email-auth-checklist.md../malware-analysis/ ../attack-chain/(钓鱼阶段) ../windows-ad/(令牌)上游: MASTER R36
MUST NOT: 未授权对第三方域群发测试钓鱼
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