{"uid":"cap_jKYLRfQfwWjNyujP97DnE","slug":"dkim-selector-protonmail3-lookup-dca76794","name":"DKIM Selector protonmail3 Lookup","description":"DKIM public key for selector \"protonmail3\" of a domain: looks up protonmail3._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 protonmail3 selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/protonmail3?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_JMDY3n6X67q87secBqV3y","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 'protonmail3' selector of a given domain, confirming mail signing validity.","exampleAgentPrompt":"Can you check whether protonmailapp.com has a valid, non-revoked protonmail3 DKIM key set up correctly — including the key type and length?","exampleUseCases":[{"title":"ProtonMail DKIM deliverability audit","prompt":"Check if example.com has the protonmail3 DKIM selector configured correctly and whether the key is active or revoked — I need to make sure our ProtonMail-sent emails will pass DKIM verification."},{"title":"Email security compliance check","prompt":"I'm auditing our domain's email authentication setup. Can you look up the protonmail3 DKIM record for mybusiness.com and tell me the key type, length, and whether it's in testing mode?"},{"title":"Incident investigation after bounce","prompt":"We're getting DKIM failures on emails from mycompany.org — can you pull the protonmail3._domainkey TXT record and tell me if the public key is missing or revoked?"}],"resultDescription":"Returns parsed details from the protonmail3._domainkey.<domain> TXT record including: DKIM version (v=), key type (k=), public key material, key length in bits, whether the record is in testing mode (t=y), and whether the key is revoked (empty p= field). Confirms whether email signed with the protonmail3 selector will successfully verify.","failureModes":["Domain has no protonmail3._domainkey TXT record — returns not found or empty result","DNS resolution failure via Cloudflare DoH — network or upstream error","Malformed TXT record that cannot be parsed — may return partial or error response","Revoked key (empty p=) detected and flagged — signals signing will fail","Rate limiting or payment failure — request rejected before DNS lookup"],"whenToPreferThis":"Use this endpoint when you specifically need to validate or audit the ProtonMail 'protonmail3' DKIM selector for a domain — particularly when verifying ProtonMail email authentication, investigating DKIM-related delivery failures, or performing email security audits. Prefer this over generic DNS TXT lookups when you need structured, pre-parsed DKIM field output (v=, k=, key length, revocation status) rather than a raw TXT string.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:07.234Z","isFirstParty":false,"canonicalSlug":"dkim-selector-protonmail3-lookup-dca76794"}