mailX
Email deliverability toolkit and live DNS checker for humans and AI agents.
Resumen
¿Qué es mailX?
mailX is a comprehensive email deliverability toolkit and DNS lookup platform designed to identify why emails go to spam and provide actionable steps to fix them. Built for both human professionals and AI agents, it features live DNS interrogation tools alongside email authentication checkers for SPF, DKIM, DMARC, and BIMI. The platform diagnoses server configurations, checks real-time domain blacklist statuses, and evaluates SMTP and IMAP setups to optimize inbox placement. Additionally, it features native integrations for developers, offering an MCP server implementation and a clean JSON API to streamline diagnostic workflows within automated multi-agent ecosystems.
¿Para qué se usa mailX?
Etiquetas

Características Principales
- Combined audits verifying SPF, DKIM, DMARC, MX, and blacklists in one click
- Model Context Protocol (MCP) server integration for AI agents and automated coding workflows
- Live DNS lookup tools checking records in real time
- Plain-English explanations and exact, actionable troubleshooting steps
- Comprehensive blacklist checker tracking status across global RBL and DNSBL spam databases
- Privacy-focused diagnostic utility that never stores user data
¿Cómo usar mailX?
To use mailX, enter your domain name or IP address into the main analysis input on the homepage to launch a full deliverability and live DNS audit. The tool instantly runs automated checks against live records and returns a plain-English diagnostic report identifying domain reputation issues, technical misconfigurations, or authentication errors. Review the actionable, exact steps provided in the report to update your DNS records or mail server architecture and resolve your spam placement issues.
Herramientas Alternativas
Pros & Contras
Sin Datos
Casos de Uso
- Analyzing a business domain to fix missing or broken email authentication protocols causing emails to land in spam
- Integrating an MCP server into an AI engineering agent's system configurations to let autonomous agents debug domain infrastructure records
- Performing live reverse DNS (PTR) or network routing lookups to troubleshoot mail server connectivity problems
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