Make sure email actually reaches inboxes. Use this skill when setting up email authentication (SPF, DKIM, DMARC), diagnosing emails landing in spam, planning a domain reputation strategy, monitoring sender reputation, or hardening against email spoofing.
Install
npx skills add rampstackco/claude-skills --skill email-deliverabilitynpx skills add rampstackco/claude-skills --skill email-deliverability -a claude-code -gnpx skills add rampstackco/claude-skills --skill email-deliverability -a codex -ggemini skills install https://github.com/rampstackco/claude-skills.git --path skills/email-deliverabilitygh skill install rampstackco/claude-skills email-deliverabilitygit clone --depth 1 https://github.com/rampstackco/claude-skills /tmp/rampstackco__claude-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/rampstackco__claude-skills/skills/email-deliverability ~/.claude/skills/email-deliverability # Claude Code
cp -R /tmp/rampstackco__claude-skills/skills/email-deliverability ~/.agents/skills/email-deliverability # Codex, Cursor, Gemini CLI, Copilot, OpenCode