{"uid":"cap_3bY6zC8U1uxZnwzR-RF5w","slug":"dkim-selector-zmail-lookup-26623190","name":"DKIM Selector 'zmail' Lookup","description":"DKIM public key for selector \"zmail\" of a domain: looks up zmail._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the zmail selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/zmail?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_MrFwBzX0178Iix_cYQ1ZX","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":"Looks up and parses the DKIM public key for the 'zmail' selector of a given domain via Cloudflare DoH, returning key type, length, testing flag, and revocation status.","exampleAgentPrompt":"Can you check whether the zmail DKIM selector is properly configured for zoho.example.com — I want to know the key type, key length, and whether it's been revoked?","exampleUseCases":[{"title":"Zoho Mail DKIM verification audit","prompt":"We're setting up Zoho Mail for clientdomain.com and I need to confirm the zmail DKIM selector is active and valid — can you check the key type, length, and whether the p= field is populated (not revoked)?"},{"title":"Email deliverability troubleshooting","prompt":"Emails from our Zoho Mail account are landing in spam — can you look up the zmail DKIM record for ourbusiness.com and tell me if the key is revoked or in testing mode?"},{"title":"Security audit of outbound mail signing","prompt":"I'm doing a security review of mail.corp.io — can you fetch the zmail DKIM public key details so I can check the key length and confirm it meets our 2048-bit minimum requirement?"}],"resultDescription":"Returns parsed details from the zmail._domainkey.<domain> TXT record including the DKIM version (v=), key type (k=), public key length in bits, whether the testing flag (t=y) is set, and whether the key is revoked (empty p= field), plus confirmation of whether mail signed with this selector will verify.","failureModes":["Domain has no zmail._domainkey TXT record (NXDOMAIN or NOERROR with no data)","DNS query failure or Cloudflare DoH unreachable","Malformed TXT record that cannot be parsed","Empty or missing p= field indicating a revoked/inactive key","Payment not processed or x402 auth failure returning 402"],"whenToPreferThis":"Use this endpoint when you specifically need to validate the 'zmail' DKIM selector, which is the standard selector used by Zoho Mail. Prefer this over generic DNS TXT lookup endpoints when you need parsed, structured DKIM field extraction (v=, k=, key length, revocation status) rather than raw TXT record data. It is the right choice for Zoho Mail deliverability audits, DKIM rotation checks, and email security reviews involving the zmail selector.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:08.451Z","isFirstParty":false,"canonicalSlug":"dkim-selector-zmail-lookup-26623190"}