com.mailsecuritytools.api/email-security·Security

Mail Security Tools

Free DMARC, SPF, DKIM and MX checks, a 1-cent email security score and a $1 DNS fix plan.

Connect

remote

Terminal

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

Nothing to configure — it works as is.

Review passed

Reviewed 48m ago.

No findings.

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 charged.