{"uid":"cap_-g08Q9VtZDE9vS5iXgC4n","slug":"plus-address-detection-for-email-security-review-f4cef3ba","name":"Plus-Address Detection for Email Security Review","description":"Plus-address detection for Security review: Detect sub-addressing in an email local part and return the base mailbox. DNS data only; does not send email or verify that an inbox exists.","url":"https://market.datapackvibe.com/x402/demand-domain-plus-address-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_jwhbeKWmG4zLX_W-dBWFR","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":"Detects sub-addressing (plus-addressing) in an email local part and returns the base mailbox using DNS data only.","exampleAgentPrompt":"Can you check if the email address user+promo@example.com is using plus-addressing and tell me what the real base mailbox is?","exampleUseCases":[{"title":"Block duplicate registrations via plus aliases","prompt":"A user just signed up with alice+spam@gmail.com — can you detect if that's a plus-address trick and tell me the actual base mailbox they're using?"},{"title":"Security audit of collected email list","prompt":"I have a suspicious email submission: support+test123@company.com — check if it's using sub-addressing so I know if someone is trying to game our system."},{"title":"Pre-validate email before account creation","prompt":"Before I create an account for the email john.doe+newsletter@outlook.com, can you tell me if it contains a plus-address tag and what the underlying base address is?"}],"resultDescription":"Returns whether the submitted email address contains a plus-address sub-tag in its local part, and provides the base mailbox (the portion before the '+') using DNS data. Does not verify inbox existence or send any email.","failureModes":["Invalid email format returns an error or empty result","Email without a plus sign returns no sub-address detected","DNS lookup failures may affect domain resolution accuracy","Malformed input may cause parsing errors"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, read-only check to detect email sub-addressing (plus aliases) for security, fraud prevention, or deduplication purposes, without needing to send a verification email or confirm inbox existence. Ideal for pre-registration validation pipelines or security reviews of submitted email data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:26.675Z","isFirstParty":false,"canonicalSlug":"plus-address-detection-for-email-security-review-f4cef3ba"}