Email Header Phishing Analysis

Email Header Phishing Analysis is a Data skill for Claude Code, published by mukul975 in Anthropic-Cybersecurity-Skills.

27.8K stars3.4K forkson mukul975/Anthropic-Cybersecurity-SkillsAdded 2026/08/14Repository updated 2026/08/08

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ai-agentsclaude-codecloud-securitycybersecuritydevsecopsethical-hackingincident-responseinfosecllmmalware-analysismcpmitre-attacknist-csfosintpenetration-testingred-teamsecuritysecurity-automationthreat-huntingthreat-intelligence

Install in seconds

Install Email Header Phishing Analysis

Copy Email Header Phishing Analysis into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/analyzing-email-headers-for-phishing-investigation ~/.claude/skills/analyzing-email-headers-for-phishing-investigation

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/analyzing-email-headers-for-phishing-investigation/SKILL.md in mukul975/Anthropic-Cybersecurity-Skills
Installs to: ~/.claude/skills/analyzing-email-headers-for-phishing-investigation
Collection: One of 25 skills cataloged from this repository
Category: Data — 668 skills

What Email Header Phishing Analysis does

Email Header Phishing Analysis parses raw email headers to trace delivery paths, verify sender authenticity, and detect spoofing or phishing indicators. Use it during incident response or phishing investigations to validate SPF, DKIM, and DMARC records and assess domain reputation.

Email Header Phishing Analysis is cataloged under Data on DirSkills. Email Header Phishing Analysis comes from a repository tagged ai-agents, claude-code, cloud-security, cybersecurity and devsecops.

Documentation

README

Excerpt

Analyzing Email Headers for Phishing Investigation

When to Use

When investigating a suspected phishing email to determine its true origin
For verifying sender authenticity and detecting email spoofing
During incident response when a user has clicked a phishing link
When tracing the delivery path and relay servers of a suspicious email
For validating SPF, DKIM, and DMARC alignment to identify forgery

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Email Header Phishing Analysis

What else does mukul975 publish alongside Email Header Phishing Analysis?
Email Header Phishing Analysis is one of 25 skills that DirSkills catalogs from mukul975/Anthropic-Cybersecurity-Skills, the repository it ships in. Its siblings there include API Gateway Log Analysis, Abusing DPAPI for Credential Access and Achieving CMMC Level 2 Compliance. Each one is a separate skill with its own page in this directory, installs the same way Email Header Phishing Analysis does, and is maintained by mukul975 in that same repository. The rest of the collection is listed on the mukul975/Anthropic-Cybersecurity-Skills page.
How does Email Header Phishing Analysis compare to other Data skills?
Email Header Phishing Analysis ranks #67 by stars among the 668 Data skills in this catalog. The most-starred ones next to it are Benchmark Methodology, Jupyter Notebook and Solana. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Email Header Phishing Analysis against them. Open each page to compare what they document and how they install.