{"uid":"cap_bHqZneVhb-pk0xYcoS2FW","slug":"dns-a-record-lookup-for-pop3-subdomain-c2fa6dd9","name":"DNS A Record Lookup for pop3 Subdomain","description":"A record of pop3.<domain>: looks up the pop3 host under the domain you give (A via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like pop3 without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/pop3/a?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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_0FxCeiQXu6PHTg8KYqjcO","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":"Resolves the A record for the pop3.<domain> subdomain via Cloudflare DNS over HTTPS, returning existence status, IP records, and TTL.","exampleAgentPrompt":"Check whether example.com has a pop3 subdomain configured — look up its DNS A record and tell me if it exists, what IP it resolves to, and the TTL.","exampleUseCases":[{"title":"Verify email server before migration","prompt":"Before I migrate my company's email, can you check if pop3.acmecorp.com exists in DNS and what IP it points to?"},{"title":"Audit domain mail infrastructure","prompt":"I'm auditing the mail setup for clientdomain.net — does it have a pop3 subdomain set up, and if so what's the A record and TTL?"},{"title":"Check competitor mail host presence","prompt":"Does rivalcompany.com have a pop3 host configured? Look up the DNS A record for pop3.rivalcompany.com and tell me if it resolves."}],"resultDescription":"Returns whether the pop3.<domain> A record exists, the resolved IPv4 address(es), the TTL value in seconds, and the DNS response code. If the subdomain does not exist, indicates it is absent with appropriate NXDOMAIN or empty response details.","failureModes":["Domain not found / NXDOMAIN — pop3 subdomain does not exist for the given domain","Invalid or malformed domain name input causing query failure","Cloudflare DoH upstream timeout or unavailability","Rate limiting or payment failure for the $0.01 per call fee","Network connectivity issues between the service and Cloudflare DoH"],"whenToPreferThis":"Choose this endpoint when you need a quick, targeted check for whether a specific domain has a POP3 mail server host configured, without enumerating all subdomains. Ideal for email infrastructure audits, pre-migration checks, or validating mail server presence on a per-domain basis. Prefer over general DNS lookup tools when you specifically need the pop3 subdomain A record resolved via Cloudflare DoH.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:46:17.575Z","isFirstParty":false,"canonicalSlug":"dns-a-record-lookup-for-pop3-subdomain-c2fa6dd9"}