Deliverability Checker
Skill Verified ActiveCheck email deliverability and DNS configuration. Use when: diagnosing email delivery issues; setting up new email domains; auditing email authentication; checking SPF/DKIM/DMARC; troubleshooting spam folder issues
Diagnose and resolve email delivery issues by verifying critical DNS records like SPF, DKIM, and DMARC.
Features
- Check SPF, DKIM, DMARC, and MX records
- Provide detailed audit reports with scores
- Identify and suggest fixes for deliverability issues
- Support customizable DKIM selectors
- Generate HTML reports for visual review
Use Cases
- Troubleshooting emails landing in spam folders
- Setting up new email domains and ensuring proper authentication
- Auditing email authentication configurations after migrations
- Verifying email health for client onboarding
Non-Goals
- Accessing user's actual email data or content
- Replacing in-depth email server administration
- Guaranteeing email delivery without other server-side configurations
Installation
npx skills add guia-matthieu/clawfu-skillsRuns the Vercel skills CLI (skills.sh) via npx — needs Node.js locally and at least one installed skills-compatible agent (Claude Code, Cursor, Codex, …). Assumes the repo follows the agentskills.io format.
Quality Score
VerifiedTrust Signals
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