{"uid":"cap_T9Mya0PJdPakp6YA8jvZn","slug":"mcp-compiler-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-841a7a66","name":"B2A Email Deliverability, MX, SPF & DMARC Verifier","description":"Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (Live x402 v2, IETF MPP & MCP endpoint at https://mcp-compiler.agentdiet.dev/v1/email-check)","url":"https://mcp-compiler.agentdiet.dev/v1/email-check?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["email"],"properties":{"email":{"type":"string","minLength":1,"description":"Email address to validate for syntax, MX deliverability, and disposable risk"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.005","displayCostAsset":"USD","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":"$0.005/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zxIBcvxTf3uUDAXJKSi-x","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-compiler.agentdiet.dev","brandSlug":"mcp-compiler-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-compiler.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, disposable/burner provider detection, role account status, and live DNS MX, SPF, and DMARC record checks.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email address — specifically whether the domain has valid MX records and whether it's from a disposable or burner provider?","exampleUseCases":[{"title":"Pre-send lead list email scrub","prompt":"Before I send this outreach campaign, check if alex.turner@startupxyz.io is a legitimate deliverable email or a throwaway — I need to know if the domain has MX records and whether it's flagged as a disposable provider."},{"title":"Sign-up form fraud prevention","prompt":"Someone just registered with the email temp_user99@mailnull.com on our platform — can you verify whether this is a real email or a burner/disposable address we should block?"},{"title":"Domain email security audit","prompt":"I'm vetting a new vendor whose contact is billing@acmecorp.com — can you check whether that domain has proper SPF and DMARC records set up, and whether the email looks safe to trust?"}],"resultDescription":"Returns a structured object indicating whether the email passes syntax validation, whether the domain is associated with a known disposable or burner provider, whether it is a role-based account (e.g. admin@, info@), and the live DNS lookup results for MX, SPF, and DMARC records, providing an overall deliverability assessment.","failureModes":["Missing or malformed email parameter returns a validation error","DNS lookup timeouts if the email domain is unreachable or slow to respond","Unknown or newly registered disposable providers may not be detected","Role-account detection may produce false positives for legitimate custom role addresses","Non-existent TLD or purely invalid syntax may return an error rather than a structured result"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, multi-dimensional email check that covers both format validation and live DNS verification (MX, SPF, DMARC) in a single call, and when disposable/burner or role-account detection is important — for example, during user sign-up fraud prevention, lead list hygiene, or vendor email trust assessment. Prefer this over simple regex validators when real-time DNS deliverability and security record checks are needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:45.460Z","isFirstParty":false,"canonicalSlug":"mcp-compiler-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-b017fde1"}