{"uid":"cap_DELCHOHDo21a77KnGFJqH","slug":"spf-authorizes-yahoo-checker-a0aa1d71","name":"SPF Authorizes Yahoo Checker","description":"Does the domain's SPF record authorise yahoo to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for yahoo's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.","url":"https://email.intel.rallylive.ca/email/spf-authorizes/yahoo?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_V5A_EYi4h0Qg1EG68o7zb","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 whether a domain's SPF record explicitly authorizes Yahoo to send mail on its behalf, returning yes/no, the matching mechanism, and the full SPF record.","exampleAgentPrompt":"Check whether the SPF record for acmecorp.com authorizes Yahoo to send its email — I want to know if Yahoo is listed as an allowed sender and see the full SPF record.","exampleUseCases":[{"title":"Verify Yahoo transactional email setup","prompt":"We just set up Yahoo as our transactional email provider for newsletters.example.com — can you confirm the SPF record actually authorizes Yahoo to send mail for that domain?"},{"title":"Audit domain for unexpected Yahoo sender","prompt":"I'm doing a security review of ourdomain.com and want to know if Yahoo is authorized in the SPF record — I didn't expect them to be there and want to check if there's an unauthorized sender."},{"title":"Pre-launch email deliverability check","prompt":"Before we go live, can you verify that the SPF record for mybrand.io includes Yahoo so our Yahoo-routed emails won't land in spam?"}],"resultDescription":"Returns a yes/no authorization result indicating whether Yahoo is covered by the domain's SPF record, the specific SPF mechanism that matched (e.g. an include or ip4/ip6 entry), and the full raw SPF TXT record retrieved via Cloudflare DNS over HTTPS.","failureModes":["Domain has no SPF TXT record — returns no authorization with empty record","Domain does not exist or DNS lookup fails — returns an error response","SPF record exists but is malformed or unparseable — may return partial data or error","Yahoo not found in SPF chain — returns no with null matching mechanism","Rate limiting or DoH (Cloudflare) timeout — may return a service error"],"whenToPreferThis":"Use this endpoint when you specifically need to verify Yahoo sender authorization in a domain's SPF policy — for example, when onboarding Yahoo as an email vendor, auditing SPF records for unexpected senders, or confirming deliverability before launch. Prefer this over generic SPF lookup tools when you need a structured yes/no answer specifically about Yahoo with the matched mechanism surfaced automatically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T00:44:43.500Z","isFirstParty":false,"canonicalSlug":"spf-authorizes-yahoo-checker-a0aa1d71"}