All servers · Agent payments (x402) · Cloud & networking

Mail Security Tools

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

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	tools
Tool definitions	7 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Description written by the publisher, not verified

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

Connect

streamable-http · https://api.mailsecuritytools.com/mcp

claude mcp add --transport http email-security https://api.mailsecuritytools.com/mcp

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

Tools as reported by the server

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 x402; errors are not
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 $0.50 USDC via x402;
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.

Website · JSON · Text for agents · Registry updated 2026-10-15