{"uid":"cap_zbgSK9f9EjtYPxflvZ0mc","slug":"forest-gas-station-mail-preflight-mx-spf-dmarc-check-6279fdcb","name":"Forest Gas Station — Mail Preflight (MX/SPF/DMARC Check)","description":"MX/SPF/DMARC preflight; not mailbox verification. Base mainnet USDC","url":"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/domain/mail-preflight?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","maxLength":253,"minLength":1,"description":"Public domain name to inspect."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_XF4-wJh0Jjfajx6AHVHzK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a domain is properly configured for email sending and receiving by validating its MX, SPF, and DMARC DNS records — without verifying individual mailboxes.","exampleAgentPrompt":"Can you do a mail preflight check on acmecorp.com — I want to know if its MX, SPF, and DMARC records are correctly set up before we start sending campaigns from that domain?","exampleUseCases":[{"title":"Pre-send deliverability audit for campaign","prompt":"Before we launch our email newsletter from newsroom.example.com, can you check whether the MX, SPF, and DMARC DNS records are all properly configured so we don't end up in spam?"},{"title":"Onboarding vendor domain email check","prompt":"We're onboarding a new supplier at supplierco.net and plan to accept emails from them — can you verify their domain has proper MX and SPF records set up?"},{"title":"Diagnosing email bounce or delivery failure","prompt":"Emails from partnerfirm.io keep bouncing or getting rejected — can you run a mail preflight check on partnerfirm.io to see if their MX, SPF, or DMARC configuration is broken?"}],"resultDescription":"Returns the DNS email configuration status for the given domain, including whether valid MX records exist (indicating the domain can receive mail), whether an SPF record is present and parseable, and whether a DMARC policy is published — providing a preflight pass/fail picture for email deliverability without checking individual mailbox existence.","failureModes":["Domain does not exist or has no DNS resolution — returns DNS lookup failure","Domain has no MX records — SPF/DMARC may still be checked but mail reception is unsupported","Malformed domain string exceeds 253 characters or is empty — input validation error","Transient DNS resolver errors causing incomplete results","DMARC or SPF records exist but are syntactically invalid — flagged as misconfigured"],"whenToPreferThis":"Use this endpoint when you need a lightweight DNS-level email readiness check for a domain — specifically MX, SPF, and DMARC — and do NOT need to verify whether a specific email address or mailbox exists. Prefer this over full mailbox verification tools when the goal is deliverability preflight, spam-filter readiness, or infrastructure auditing rather than contact validation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:50:01.421Z","isFirstParty":false,"canonicalSlug":"forest-gas-station-mail-preflight-mx-spf-dmarc-check-6279fdcb"}