Domain Mail Check
Inspect domain email authentication, deliverability compliance for Gmail and Outlook, DNS records, and registration details without requiring API keys.
Domain Mail Check is a hosted, keyless MCP server designed to inspect and diagnose email authentication and domain health using public records. It audits SPF, DKIM, and DMARC configurations with grading and remediation advice, tests bulk-sender compliance against major providers like Gmail and Outlook, and calculates a 0 to 100 launch readiness score for outreach domains. Operating in a completely read-only capacity, it provides AI assistants with instant visibility into mail configurations, DNS records, and WHOIS registration details without sending test emails or altering DNS settings.
Key Features
010 GitHub stars
02Audit SPF, DKIM, and DMARC authentication records with graded fix recommendations
03Test email deliverability and compliance against Gmail and Outlook bulk-sender requirements
04Calculate a 0 to 100 launch readiness score for new outbound and cold email domains
05Inspect comprehensive DNS records including MX, TXT, CAA, and NS configurations
06Look up domain registration data, including registrar name and expiration dates
Use Cases
01Verifying that a new domain is correctly configured for cold email and outreach campaigns
02Diagnosing why emails from a specific domain are being rejected or routed to spam folders
03Auditing domain DNS records to identify current mail providers and SSL certificate authorities