Use when building email features, emails going to spam, high bounce rates, setting up SPF/DKIM/DMARC authentication, implementing email capture, ensuring compliance (CAN-SPAM, GDPR, CASL), handling webhooks, retry logic, making emails accessible (alt text, headings, contrast, screen readers), or deciding transactional vs marketing.
Install
npx skills add resend/resend-skills --skill email-best-practicesnpx skills add resend/resend-skills --skill email-best-practices -a claude-code -gnpx skills add resend/resend-skills --skill email-best-practices -a codex -ggemini skills install https://github.com/resend/resend-skills.git --path skills/email-best-practicesgh skill install resend/resend-skills email-best-practicesgit clone --depth 1 https://github.com/resend/resend-skills /tmp/resend__resend-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/resend__resend-skills/skills/email-best-practices ~/.claude/skills/email-best-practices # Claude Code
cp -R /tmp/resend__resend-skills/skills/email-best-practices ~/.agents/skills/email-best-practices # Codex, Cursor, Gemini CLI, Copilot, OpenCode