{"uid":"cap_mNG2sV1YlElefurDR1zpT","slug":"agent-data-tools-revmesh2074-workers-dev-email-deliverability-check-52ecae2a","name":"Email Deliverability Check Pack (MX, SPF, DMARC, DKIM, Score)","description":"One call to check a domain's email setup: MX records, SPF and its all-policy, DMARC and its policy, DKIM keys at the common selectors (Google, Microsoft, Mailchimp and others), MTA-STS, TLS-RPT and BIMI, with a 0-100 score, a grade and a list of fixes; optionally also checks one address (syntax, MX, disposable domain). Uses public DNS only and sends no mail. Use before a campaign, when mail lands in spam, or to vet a sender domain.","url":"https://agent-data-tools.revmesh2074.workers.dev/pack/email-deliverability?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["domain"],"properties":{"email":{"type":"string","description":"Optional address to check as well"},"domain":{"type":"string","description":"The sending domain, such as example.com (or a URL; its host is used)"}}},"responseSchema":{"type":"object","properties":{"mx":{"type":"array","items":{"type":"object","properties":{"host":{"type":"string"},"priority":{"type":"number"}}}},"spf":{"type":"string"},"bimi":{"type":"boolean"},"pack":{"type":"string"},"dmarc":{"type":"string"},"grade":{"type":"string"},"score":{"type":"number"},"domain":{"type":"string"},"failed":{"type":"object","properties":{}},"issues":{"type":"array","items":{"type":"string"}},"mtaSts":{"type":"boolean"},"tlsRpt":{"type":"boolean"},"address":{},"spfPolicy":{"type":"string"},"dmarcPolicy":{"type":"string"},"dkimSelectors":{"type":"array","items":{"type":"string"}}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USD","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_skigxx6E96lzB9q_sJq28","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"agent-data-tools.revmesh2074.workers.dev","brandSlug":"agent-data-tools-revmesh2074-workers-dev-x402","brandBaseUrl":"https://agent-data-tools.revmesh2074.workers.dev","brandDocsUrl":null,"whatItDoes":"Checks a domain's full email deliverability configuration — MX, SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI — and returns a 0–100 score, letter grade, and actionable fix list; optionally validates a single email address.","exampleAgentPrompt":"Can you run a full email deliverability check on mailchimp.com — I want to see its MX, SPF, DMARC, and DKIM setup, plus the overall score and any issues I should fix before sending a campaign?","exampleUseCases":[{"title":"Pre-campaign deliverability audit","prompt":"Before I send our newsletter tomorrow, can you check the email deliverability setup for acme.com — I need to know the score, grade, and any DNS issues with SPF, DMARC, or DKIM that could cause problems?"},{"title":"Diagnosing emails landing in spam","prompt":"Our emails from updates.shopify.com keep ending up in spam — can you audit the full email setup there, including MX, SPF, DMARC, DKIM selectors, and MTA-STS, and tell me exactly what's misconfigured?"},{"title":"Vetting a new sender domain","prompt":"I'm considering using newsletters.startup.io as our sending domain — can you check its email deliverability configuration, score it, and flag any missing or broken records I'd need to fix first?"}],"resultDescription":"Returns the domain's MX records (host and priority), SPF record and all-policy, DMARC record and policy, list of DKIM selectors found at common providers, boolean flags for MTA-STS, TLS-RPT, and BIMI, a 0–100 deliverability score, a letter grade, and an array of human-readable issues/fix recommendations. If an email address was provided, also returns address-level validation (syntax, MX reachability, disposable domain check).","failureModes":["Domain does not exist or has no DNS records — returns empty or null fields with a low score","Invalid domain format — may return an error or zero results","DKIM selectors not found at common providers even if custom selectors exist — DKIM will appear unsupported","Transient DNS lookup failures may cause partial results","Email address validation may produce false negatives for obscure disposable domain lists"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, single-call email deliverability audit covering all major authentication protocols (SPF, DMARC, DKIM) plus modern standards (MTA-STS, TLS-RPT, BIMI) with a scored summary. It is ideal for pre-campaign checks, spam troubleshooting, and sender domain vetting. Prefer it over individual DNS lookup tools when you want a unified score and actionable fix list rather than raw DNS records. It uses only public DNS and never sends mail, making it safe to run on any domain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-25T06:55:55.812Z","isFirstParty":false,"canonicalSlug":"agent-data-tools-revmesh2074-workers-dev-email-deliverability-check-52ecae2a"}