{"uid":"cap_O1R4HodszNbf9WQiipX9v","slug":"dns-txt-smtp-tls-subdomain-6eb82225","name":"dns-txt-smtp-tls-subdomain","description":"TXT record of _smtp._tls.<domain>: looks up the _smtp._tls host under the domain you give (TXT via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like _smtp._tls without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/smtp-tls/txt?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kqL94fDtoSXb29AUj4oig","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up the TXT DNS record for _smtp._tls.<domain> via Cloudflare DoH and reports its existence, content, and TTL.","exampleAgentPrompt":"Can you check if example.com has an _smtp._tls TXT DNS record configured — I want to know if it exists, what it says, and what the TTL is?","exampleUseCases":[{"title":"SMTP TLS reporting setup verification","prompt":"I'm setting up SMTP TLS reporting for mycompany.com — can you check if the _smtp._tls DNS TXT record is already in place and what it says?"},{"title":"Email security audit for a domain","prompt":"I'm auditing the email security DNS records for clientdomain.org — please check whether it has an _smtp._tls TXT record and report its content and TTL."},{"title":"Troubleshoot missing TLS policy record","prompt":"We're having issues with SMTP TLS reporting on mailprovider.net — can you look up the _smtp._tls TXT record and tell me if it's there or missing?"}],"resultDescription":"Returns whether the _smtp._tls.<domain> TXT DNS record exists, the full record content if present, and the TTL value, resolved via Cloudflare DNS over HTTPS.","failureModes":["Domain does not exist — record reported as absent","_smtp._tls subdomain has no TXT record — existence reported as false","Cloudflare DoH upstream timeout or error","Invalid or malformed domain name input causing lookup failure","NXDOMAIN response for the _smtp._tls host"],"whenToPreferThis":"Use this endpoint when you specifically need to check the _smtp._tls subdomain TXT record (used for SMTP TLS reporting policy) for a domain, rather than enumerating all subdomains or fetching general DNS records. Ideal for targeted existence checks and quick audits of SMTP TLS DNS configuration.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:37.542Z","isFirstParty":false,"canonicalSlug":"dns-txt-smtp-tls-subdomain-6eb82225"}