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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 hn-pulse.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, and DMARC record checks.
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://hn-pulse.agentdiet.dev/v1/mx-deliverability-verifier)
Output
Returns a structured object indicating email syntax validity, whether the domain uses a known disposable/burner provider, whether the address is a role account (e.g. admin@, info@), and the live DNS lookup results for MX, SPF, and DMARC records — effectively a full deliverability risk assessment for the given address.
Example use cases
Screening signups for burner emails
“Before I add this new user signup — registerme@mailnator.com — to my database, can you verify whether it's a disposable or burner email and whether it can actually receive messages?”
Pre-send deliverability check for outreach
“I'm about to send a cold outreach campaign. Can you verify that contact@acmecorp.io has valid MX records, SPF, and DMARC set up so my emails won't bounce or be flagged?”
CRM lead email hygiene audit
“I've got a new lead with email sales@bigprospect.net — can you check if it's a role account, whether the domain has proper email DNS records, and if it's likely to actually receive mail?”
Technical details
Endpoint
GEThttps://hn-pulse.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email validation that goes beyond syntax checking to include live DNS verification (MX, SPF, DMARC) and disposable/role account detection. It is particularly well-suited for agent workflows that need to assess email deliverability risk before CRM ingestion, outreach campaigns, or user registration flows, and supports HTTP 402 micropayment-based billing at $0.005 per call.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeouts may occur for obscure or slow-responding domains
- Disposable provider database may not include newly created burner services
- Live DNS results may differ from cached results if records were recently changed
- No detailed error codes documented in the response schema
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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