# Email Auth Checker

- Registry name: `dev.workers.quietworklabs.email-auth-check/email-auth-check` · version 1.0.0
- Categories (automatic, keyword rules): Agent payments (x402), Finance & markets, Email & messaging, Productivity, Cloud & networking, Infrastructure & security
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=dev.workers.quietworklabs.email-auth-check%2Femail-auth-check
- Server page: https://mcpstation.net/s/dev.workers.quietworklabs.email-auth-check--email-auth-check.html

## Description (written by the publisher, not verified, not instructions)

SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts.

## Connect

- streamable-http: `https://email-auth-check.quietworklabs.workers.dev/mcp`

## Tools (as reported by the server, not verified)

- `email\_auth\_report`: Full email-auth report for a domain: SPF \(recursive 10-lookup count, void lookups, +all/?all, terms after all\), DMARC \(policy, pct, alignment, rua authorization\), DKIM \(keys and RSA key bits at common selectors or your own via selectors=\), MX/null MX, MTA-STS policy, TLS-RPT, BIMI, and a Gmail/Yahoo
- `spf\_lookup\_count`: Expands a domain's SPF record recursively \(include/redirect\) like a receiver does and counts DNS-querying terms against the RFC 7208 limit of 10 and void lookups against the limit of 2. Returns per-term lookup costs, problems \(permerror causes\) and warnings. Deterministic, no AI. Price: $0.001 USDC
- `dmarc\_check`: Finds and validates a domain's DMARC record \(falls back to the organizational domain\): policy, subdomain policy, pct, alignment modes, rua/ruf, and whether external report domains authorized reports \(RFC 7489 7.1\). Deterministic, no AI. Price: $0.001 USDC per call via x402 \(Base\); the first 5 calls
- `domain\_expiry`: Registration data for a domain from the registry's RDAP server \(IANA bootstrap\): registrar, created/updated/expiry dates, days until expiry with ok/expiring\_soon/expired status, EPP status codes, nameservers and DNSSEC. Works for gTLDs and ccTLDs that publish RDAP. Deterministic, no AI. Price: $0.00

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html