# mailx-tools

> Use this tool when you need to diagnose and resolve email deliverability issues, as it provides a comprehensive suite of diagnostics to verify domain configurations, check DNS records, and test email servers. It solves problems such as emails not landing in the inbox by identifying issues with SPF, DKIM, DMARC, and BIMI configurations. With inputs including domain information and DNS record types, it outputs detailed diagnostics and auto-generated policies to improve email deliverability.

Canonical page: https://skillsregistry.net/skills/mailwarm-mailx-tools  
JSON: https://api.skillsregistry.net/v1/skills/mailwarm-mailx-tools

## Description

Mailx Tools is an MCP server that gives AI agents a complete email-deliverability diagnostics toolkit. Verify your domain's
  ▎ SPF, DKIM, DMARC, and BIMI configuration, look up any DNS record type (MX, CNAME, TXT, PTR), check blacklists, test SMTP and
  ▎  IMAP servers, and auto-generate SPF and DMARC policies. Designed for marketers, deliverability engineers, and anyone
  ▎ troubleshooting why emails aren't landing in the inbox.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-06-30

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/mailwarm/mailx-tools)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "mailwarm-mailx-tools"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/mailwarm-mailx-tools` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/mailwarm-mailx-tools/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt