Mail Security Tools
by mailsecuritytools.com in Security & trust
Free DMARC, SPF, DKIM and MX checks, a 1-cent email security score and a $1 DNS fix plan.
https://api.mailsecuritytools.com/mcp- Tools
- 5
- open to any client
- Uptime
- 100%
- last 30 days
- Response time
- 321 ms
- 321 ms slowest 5%
- Last check
- Passed
- 9 h ago, next any minute now
Reliability
How to connect
Add it to any MCP client that supports remote servers.
{
"mcpServers": {
"mail-security-tools": {
"type": "http",
"url": "https://api.mailsecuritytools.com/mcp"
}
}
}5 tools
- 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…
Security scan
No findings
We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time |
|---|---|---|---|
| 9 h ago | Passed | 200 | 321 ms |