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B2A Email Deliverability, MX, SPF & DMARC Verifier
B2A Email Deliverability, MX, SPF & DMARC Verifier is a paid API for AI agents from polymarket-odds.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-21).
Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX/SPF/DMARC record existence.
Price / call$0.005
Success—
StatusUnknown
How this service works
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://polymarket-odds.agentdiet.dev/v1/mx-deliverability-verifier)
Output
Returns a structured object indicating: email syntax validity, whether the domain has live MX records (deliverability), whether the address comes from a known disposable/burner provider, whether it is a role-based account (e.g. admin@, noreply@), and the presence/validity of SPF and DMARC DNS records on the domain.
Example use cases
Lead quality check before CRM import
“Before I import these leads into the CRM, can you verify that contact@acmecorp.io is a real deliverable email — check its MX records, whether it's a disposable address, and if the domain has SPF and DMARC configured?”
Fraud detection for new user signup
“A user just signed up with temp9182@mailnull.com — can you check if that's a burner or disposable email address, and whether it actually has valid MX records behind it?”
Outreach list hygiene audit
“I'm about to send a cold outreach campaign and I need to know if info@startupxyz.com is a role account, whether the domain has working MX records, and if SPF and DMARC are in place before I email them.”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email health check that combines syntax validation, live DNS MX/SPF/DMARC lookups, and disposable/role-account detection — particularly for B2B lead enrichment, signup fraud prevention, or outreach list hygiene where deliverability confidence matters and you want all checks in one low-cost call ($0.005).
Side effects
- Invalid or missing email parameter returns an error
- DNS lookup timeout for obscure or offline domains
- False negatives on newly created disposable providers not yet in blocklists
- Role account detection may miss uncommon role prefixes
- SPF/DMARC records may be stale if DNS TTL is high
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emailrequired | string | Email address to validate for syntax, MX deliverability, and disposable risk |
Output
Schema · Response
{
"type": "object"
}Reviews
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