Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders. This skill covers transactional email that works, marketing automation that converts, deliverability that reaches inboxes, and the infrastructure decisions that scale. Use when: keywords, file_patterns, code_patterns.
Install
npx skills add davila7/claude-code-templates --skill email-systemsnpx skills add davila7/claude-code-templates --skill email-systems -a claude-code -gnpx skills add davila7/claude-code-templates --skill email-systems -a codex -ggemini skills install https://github.com/davila7/claude-code-templates.git --path cli-tool/components/skills/business-marketing/email-systemsgh skill install davila7/claude-code-templates email-systemsgit clone --depth 1 https://github.com/davila7/claude-code-templates /tmp/davila7__claude-code-templates
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/davila7__claude-code-templates/cli-tool/components/skills/business-marketing/email-systems ~/.claude/skills/email-systems # Claude Code
cp -R /tmp/davila7__claude-code-templates/cli-tool/components/skills/business-marketing/email-systems ~/.agents/skills/email-systems # Codex, Cursor, Gemini CLI, Copilot, OpenCode