INDIVIDUAL MCP TOOL

check_domain_email_security

Free.

mailsecuritytools.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://api.mailsecuritytools.com/mcp

No auth detected

Connect to this endpoint to inspect the live schema for check_domain_email_security and invoke it with your own arguments.

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Inferred read-only · medium confidence · heuristic, not a guarantee.

No write-capable action terms were found; this is not proof that invocation has no side effects.

CONNECT WITH APPROVAL

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.mailsecuritytools]
url = "https://api.mailsecuritytools.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "mailsecuritytools": {
      "type": "http",
      "url": "https://api.mailsecuritytools.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: mailsecuritytools
Remote MCP URL: https://api.mailsecuritytools.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "mailsecuritytools": {
      "url": "https://api.mailsecuritytools.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "mailsecuritytools": {
      "type": "http",
      "url": "https://api.mailsecuritytools.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "mailsecuritytools",
  "transport": "streamable-http",
  "url": "https://api.mailsecuritytools.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

pricing — Free.
email_security_score — Grade a domain's email security 0-100 (A-F): SPF 30, DMARC 40, DKIM 25, MX 5, from live DNS, with findings and the top 3 fixes.
check_email_address — Check one email address: syntax, MX / null MX, disposable domain, role account, free provider; verdict ok / risky / undeliverable.
email_fix_plan — Email security fix plan for one domain: the exact SPF, DKIM and DMARC records to publish (create / replace / keep, name, value, why), in order, with click-path steps for the domain's DNS host and a staged DMARC rollout.