Jamaalx

Email Deliverability — Security skill for Claude Code

Security community

Email deliverability audit — why your mail lands in spam or bounces: SPF/DKIM/DMARC auth & alignment (deeper than attack-surface), DMARC policy enforcement + report analysis, sending infra (ESP setup.

How to install Email Deliverability

Installs to ~/.claude/skills/jamaalx-claude-skills-email-deliverability/SKILL.md

Terminal

mkdir -p ~/.claude/skills/jamaalx-claude-skills-email-deliverability && curl -fsSL https://raw.githubusercontent.com/Jamaalx/claude-skills/HEAD/commands/email-deliverability.md -o ~/.claude/skills/jamaalx-claude-skills-email-deliverability/SKILL.md

Restart Claude Code, or start a new session, for it to be picked up.

What Email Deliverability does

description: "Email deliverability audit — why your mail lands in spam or bounces: SPF/DKIM/DMARC auth & alignment (deeper than attack-surface), DMARC policy enforcement + report analysis, sending infra (ESP setup, dedicated-vs-shared IP, transactional-vs-marketing domain separation), domain/IP reputation & blocklists (Spamhaus, Google Postmaster), content/spam-score (subject, HTML, plain-text part, link reputation, unsubscribe), list hygiene (bounce handling, suppression, no purchased lists

Alternatives in Security

OpenTag — Open-source, channel-native agent gateway for Slack 499 ★
Skill Threat Modeling — Code-First Deep Risk Analysis Skill for Claude Code - 8-Phase Workflow with Security design review, STRIDE Thr 207 ★
Kali Pentest — Kali Linux penetration testing skill for AI agents (Claude Code, OpenClaw, Hermes Agent) 100 ★