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MTA-STS & TLS-RPT Email Transport Security Auditor
x402
MTA-STS & TLS-RPT Email Transport Security Auditor is a paid API for AI agents from mtasts.hergertsynthora.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Audits a domain's MTA-STS policy and TLS-RPT configuration by resolving DNS records, fetching the policy file, and cross-validating MX patterns to return an enforce/report verdict
Price / call$0.05
Success—
StatusUnknown
How this service works
SMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, returns an enforce/report verdict. Complements SPF/DKIM/DMARC with the TLS transport layer. Deterministic, Ed25519-signed. $0.003 USDC via x402 on Base. SYNTHORA.
Output
Returns a verdict indicating whether the domain's MTA-STS policy is in enforce or report mode, along with the resolved DNS policy records, the parsed policy file contents, MX pattern cross-validation results, and TLS-RPT configuration status. Response is Ed25519-signed for integrity assurance.
Example use cases
Example prompt
“Do a full MTA-STS and TLS-RPT audit on example.com — check whether the policy DNS records, the well-known policy file, and the MX patterns all line up and tell me if it's in enforce or report mode.”
Technical details
Endpoint
POSThttps://mtasts.hergertsynthora.com/serviceWhen to prefer
Use this endpoint when you need to specifically audit the TLS transport layer of email security (MTA-STS + TLS-RPT) for a domain, complementing SPF/DKIM/DMARC checks. Prefer this over generic email security tools when you need RFC 8461/8460 compliance verification with Ed25519-signed deterministic results, or when diagnosing why email TLS enforcement is failing between mail servers.
Side effects
- Domain not found or invalid — DNS resolution failure
- No MTA-STS DNS record present — policy not configured
- Policy file unreachable at well-known URL — HTTP fetch failure
- MX records do not match any MTA-STS policy mx: patterns — cross-validation mismatch
- No TLS-RPT record found — reporting not configured
- Invalid domain format provided — input validation error
- Payment not processed — x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| op | string | Audit scope (default check = full) |
| domain | string | Domain or email address to audit |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "mtasts",
"result": {
"score": 100,
"domain": "example.com",
"issues": [],
"mta_sts": {
"mx": [
"*.mail.example.com"
],
"mode": "enforce",
"max_age": 604800,
"dns_present": true,
"mx_matches_dns": true,
"policy_reachable": true
},
"tls_rpt": {
"present": true
},
"verdict": "enforced+reporting"
}
}
}Tags
x402
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