{"uid":"cap_c3ok4ay2HTzAMUSzURhsb","slug":"toolvend-dev-email-authentication-posture-check-fde22863","name":"toolvend.dev Email Authentication Posture Check","description":"Email authentication posture for a domain: DMARC + SPF records fetched, parsed, scored 0-100, with findings and fix recommendations.","url":"https://toolvend.dev/email-auth/:domain","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_AwRejlfeL_FLmAT7Ge6V6","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches and parses DMARC and SPF DNS records for a domain, scores email authentication posture 0-100, and returns findings with fix recommendations.","exampleAgentPrompt":"Can you check the email authentication posture for acme.com — fetch the DMARC and SPF records, score how well it's configured, and tell me what needs to be fixed?","exampleUseCases":[{"title":"Pre-send deliverability audit","prompt":"Before we launch our email campaign, can you check the email authentication setup for our sending domain newsletter.mybrand.com — I want to know the DMARC and SPF status, our score out of 100, and any issues we should fix first?"},{"title":"Security due diligence on acquisition target","prompt":"We're doing due diligence on a company — can you check the email authentication posture for targetcompany.com and tell me if their DMARC and SPF are properly configured or if they're vulnerable to email spoofing?"},{"title":"Diagnosing email rejection issues","prompt":"Our customers keep telling us our emails land in spam — can you pull the DMARC and SPF records for ourcompany.com, score the authentication setup, and show me the specific findings and recommendations to fix it?"}],"resultDescription":"Returns the parsed DMARC and SPF DNS records for the domain, a numeric posture score from 0 to 100, a list of findings describing configuration issues, and actionable recommendations to remediate those issues.","failureModes":["Domain does not exist — DNS resolution fails, no records returned","Domain has no DMARC or SPF record published — score will be very low or zero with findings noting absence","Malformed domain input — endpoint returns validation error","Transient DNS resolution failure — intermittent error, retry recommended","Private or internal domain that is not publicly resolvable"],"whenToPreferThis":"Use this endpoint when you need a quick, structured, scored assessment of a domain's email authentication posture (DMARC + SPF) without setting up DNS tooling yourself. Prefer it over raw DNS lookups when you need parsed records, a normalized score, and human-readable fix recommendations in a single call. Ideal for security audits, deliverability diagnostics, and due diligence workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:46:29.610Z","isFirstParty":false}