Skill Claude CodeCodex
Parse and analyze email headers to trace the origin of phishing emails, verify sender authenticity, and identify spoofing through SPF, DKIM, and DMARC validation.
46 4d ago A 44 tokens
original MIT
dns-doctor
02Skill Claude CodeCodex
Use when a domain's email is landing in spam, or you see SPF PermError / "too many DNS lookups", DMARC stuck at p=none, a "550 5.7.515" or "550 5.7.1" rejection, DKIM failures, or a domain that might be blacklisted. Diagnoses SPF, DMARC, DKIM, MX, DNS, blacklist and domain/SSL expiry against the DNS Doctor MCP server…
2 27d ago A 116 tokens
original Apache-2.0