mailX by mailwarm
UnclaimedInstantly diagnose and fix email deliverability issues with comprehensive DNS and email authentication checks.
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TL;DR - mailX by mailwarm
- Diagnoses email deliverability issues with live DNS and authentication checks.
- Provides clear explanations and actionable fixes for spam placement problems.
- Offers tools for humans and AI agents, including API and MCP access.
Pricing: Free forever
Best for: Individuals & startups
Pros & Cons
Pros
- Completely free with no signup required.
- Provides instant results from live DNS.
- Offers clear, plain-English explanations and actionable fixes.
- Supports both human users and AI assistants with API/MCP access.
- No user data is stored, ensuring privacy.
Cons
- No direct email sending or warming functionality (requires other Mailwarm products).
- Focuses solely on diagnostics, not ongoing monitoring or automated fixes (requires MailAdept).
Key Features
Live DNS Lookup Tools (A, MX, TXT, CNAME, PTR)Email Authentication Checkers (SPF, DKIM, DMARC, BIMI)Blacklist Checker (RBL / DNSBL)Mail Server Tests (SMTP, IMAP)DMARC, SPF, DKIM GeneratorsAPI & MCP access for AI agents
Pricing
Free
mailX by mailwarm is completely free to use with no hidden costs.
What is mailX by mailwarm?
mailX by Mailwarm is a comprehensive email deliverability toolkit designed for both humans and AI agents. It helps users understand why their emails are going to spam and provides actionable steps to fix these issues. The platform offers a suite of tools for DNS lookups, email authentication checks (SPF, DKIM, DMARC, BIMI), mail server tests, and blacklist checks, all running against live DNS in real time.
This tool is ideal for founders, sales teams, marketing teams, agencies, and developers who rely on email performance. It provides clear, plain-English explanations of technical issues and specific fixes, eliminating the need for deep technical expertise. mailX distinguishes itself by offering combined audits, API and MCP access for AI agents, and a focus on actionable insights rather than just raw data. It's part of the Mailwarm ecosystem, which aims to simplify email deliverability diagnostics and maintenance.
mailX helps users verify domain configurations, detect DNS issues, prevent spoofing, improve inbox placement, and identify if their domain or IP is listed on spam databases. By providing fast diagnostics and clear recommendations, it ensures that emails reach the intended inbox, protecting sender reputation and improving overall email campaign effectiveness.
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mailX by mailwarm FAQ
How does mailX differ from other DNS lookup tools like MXToolbox?
mailX differentiates itself by offering combined audits (SPF + DKIM + DMARC + MX + blacklist in one click), providing plain-English explanations of results instead of just raw data, and exposing an MCP server and clean JSON API for AI agents and developers, making it suitable for automated workflows.
What is MCP access and how can AI agents use mailX?
MCP (Mailwarm Connector Protocol) access allows AI assistants and other compatible clients to programmatically interact with mailX. AI agents can use the MCP server or the JSON API to run live deliverability diagnostics, check DNS records, and retrieve structured, actionable data to automate email system monitoring and debugging tasks.
Can mailX help me generate SPF, DKIM, or DMARC records?
Yes, mailX includes dedicated generators for SPF, DKIM, and DMARC records. These tools help users create the necessary authentication records to improve email deliverability and prevent spoofing, simplifying a often complex setup process.
What kind of issues can mailX identify that cause emails to go to spam?
mailX can identify a range of issues including missing or misconfigured SPF, DKIM, and DMARC records, poor sender reputation due to blacklist listings, DNS errors, SMTP misconfigurations, and other technical problems affecting domain reputation and email authentication. It then provides specific steps to resolve these.
Is mailX part of a larger ecosystem, and how does it fit in?
Yes, mailX is the diagnostic layer of the Mailwarm ecosystem. Mailwarm is the original email warmup tool for building sender reputation, while mailX helps diagnose problems. MailAdept is a subscription-based service that provides ongoing deliverability execution, auditing, fixing, and monitoring, often leveraging AI assistants and experts.
Source: themailx.com