{"uid":"cap_cA-t25EASiC1nD2oxmWgM","slug":"email-structure-domain-format-validator-23c6194c","name":"Email Structure & Domain Format Validator","description":"Email structure check for Security review: Check syntax and domain formatting only; it does not test whether a mailbox exists. DNS data only; does not send email or verify that an inbox exists.","url":"https://market.datapackvibe.com/x402/demand-domain-email-structure-check-security-review?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string","default":"user@example.com","description":"Email address to inspect."}}},"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_AIL-ai5e3xQAlSV4-BdRI","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":"Checks an email address for valid syntax and domain formatting using DNS data, without sending email or verifying mailbox existence.","exampleAgentPrompt":"Can you check if 'john.doe@company-example.co.uk' has valid email syntax and a properly formatted domain? I just need a structural check, no need to actually ping the mailbox.","exampleUseCases":[{"title":"Pre-registration email format gate","prompt":"Before I save this user's email 'alex_smith@my-startup.io' to the database, check whether its syntax and domain format are structurally valid so I don't store a malformed address."},{"title":"Security review of suspicious email input","prompt":"A user submitted 'admin@..malicious..com' on our contact form — can you run a structure check on it to see if it's a properly formatted email address or something sketchy?"},{"title":"Bulk onboarding data quality pass","prompt":"I'm reviewing a CSV of imported leads and want to flag bad emails — can you check if 'marketing@corp_enterprise.net' passes email syntax and domain format validation?"}],"resultDescription":"Returns a structured result indicating whether the email address passes syntax and domain format checks. Includes whether the local-part and domain are correctly structured per email standards, and DNS-based domain formatting data. Does not confirm mailbox existence or send any email.","failureModes":["Malformed or missing email input returns a validation error","Non-existent or unreachable DNS domain may cause a lookup failure","Edge-case email formats (e.g. quoted local parts, internationalized domains) may yield unexpected results","Payment failure or insufficient funds returns an HTTP 402 error","Overly long email strings may be rejected"],"whenToPreferThis":"Choose this endpoint when you need a fast, lightweight check of email syntax and domain format — for example, before storing user input, during security review of suspicious submissions, or for data-quality passes on imported contact lists. Prefer it over full mailbox-verification services when you do not want to send email or trigger SMTP probes, and when DNS-level domain format validation is sufficient.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:38.872Z","isFirstParty":false,"canonicalSlug":"email-structure-domain-format-validator-23c6194c"}