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Mail Security Tools

by com.mailsecuritytools.api
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Server Details

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

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Status
Healthy
Last Tested
Transport
Streamable HTTP · MCP 2025-11-25
URL

TDQS

Score is being calculated.

Available Tools

5 tools
check_domain_email_security
Read-onlyIdempotent
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
domainYesDomain, e.g. example.com (an email or URL on it also works)
check_email_address
Read-onlyIdempotent
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
emailYesEmail address
email_fix_plan
Read-onlyIdempotent
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
domainYesDomain, e.g. example.com (an email or URL on it also works)
email_security_score
Read-onlyIdempotent
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
domainYesDomain, e.g. example.com (an email or URL on it also works)
pricing
Read-onlyIdempotent
Inspect

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

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 5 tool updates
    • First observedcheck_domain_email_security
    • First observedcheck_email_address
    • First observedemail_fix_plan
    • First observedemail_security_score
    • First observedpricing

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