NestDaddy

Mail Security Tools

com.mailsecuritytools.api/email-security · v1.1.0

DMARC/SPF/DKIM/MX checks, email score, 100-domain bulk score, webhook watch alerts (x402 USDC).

Connect Remote server

Terminal
claude mcp add --transport http email-security https://api.mailsecuritytools.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "email-security": {
      "url": "https://api.mailsecuritytools.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "email-security": {
      "type": "http",
      "url": "https://api.mailsecuritytools.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://api.mailsecuritytools.com/mcp

Tools 8 found in our last check

  • check_domain_email_security

    Free. Look up a domain's MX, SPF (record, DNS lookup count, all qualifier), DMARC (policy, rua) and DKIM (common selectors, key size) from live DNS and list issues. No payment.

  • pricing

    Free. Prices of the paid tools, payment network and receiving address.

  • 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. Read-only. Costs $0.01 USDC via x402; errors are not charged.

  • check_email_address

    Check one email address: syntax, MX / null MX, disposable domain, role account, free provider; verdict ok / risky / undeliverable. No SMTP probe. Costs $0.01 USDC via x402; errors are not charged.

  • 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. Non-sending domains get a lock-down set. Costs $1 USDC via…

  • bulk_email_security_score

    Score up to 100 domains' email security in one call (SPF 30, DMARC 40, DKIM 25, MX 5 from live DNS): per-domain score, grade and issues, plus a summary with grade counts, domains missing DMARC or SPF, and the worst 10. For MSPs and agents checking a client or vendor list. Costs…

  • email_security_score_batch

    Score 2 to 5 domains' email security in one call (the same SPF/DMARC/DKIM/MX score, grade and findings as email_security_score), lowest score first. Costs $0.04 USDC via x402; if no domain can be scored it errors and is not charged.

  • watch_status

    Free. Status of a paid email setup watch (created with POST /v1/watch): items, expiry, last check, last webhook delivery and current SPF/DMARC/DKIM/MX state. Needs the webhook_secret from creation.

Details

Endpointhttps://api.mailsecuritytools.com/mcp (Streamable HTTP)
First published15 Oct 2026
Last updated15 Oct 2026
Registry namecom.mailsecuritytools.api/email-security

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