Email Deliverability Checker

Diagnose email deliverability issues by checking SPF, DKIM, DMARC, and other DNS records - fix why your emails land in spam.

When to Use This Skill

• Delivery troubleshooting - Emails landing in spam
• New domain setup - Configure email authentication
• Migration audit - Verify email config after domain change
• Client onboarding - Check client email health
• Compliance check - Ensure proper authentication

What Claude Does vs What You Decide