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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/disposable-email)
Output
Returns a structured object indicating whether the email address is syntactically valid, whether the domain is a known disposable/burner provider, whether it is a role account (e.g. admin@, support@), and live DNS lookup results for MX, SPF, and DMARC records, enabling a full deliverability and risk assessment.
Example use cases
Screen signups for throwaway emails
“Before we activate this new user account, check if the email they signed up with — freestuff123@guerrillamail.com — is a disposable or burner address, and whether the domain actually has real MX records.”
Validate leads before CRM import
“I have a lead with the email contact@acmecorp.io — can you verify it's syntactically valid, not a role account, and that the domain's DNS is properly configured with MX and SPF records before I add it to our CRM?”
Audit domain email security posture
“Check the email security setup for the domain used by ceo@bigcompany.com — does it have proper DMARC and SPF records configured, and is the MX pointing somewhere real?”
Technical details
Endpoint
GEThttps://hn-pulse.agentdiet.dev/v1/disposable-email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email validation that combines syntax checking, disposable provider detection, role account flagging, and live DNS verification (MX, SPF, DMARC) in one response. It is ideal for fraud prevention at signup, pre-flight checks before cold outreach, or CRM hygiene workflows where both inbox deliverability and domain email security posture matter.
Side effects
- Missing or empty email parameter returns a 400 validation error
- Malformed email string that cannot be parsed returns a syntax-invalid response
- DNS lookup timeout or failure may result in inconclusive MX/SPF/DMARC results
- Payment failure (HTTP 402) if x402 USDC micropayment is not processed
- Domains with no public DNS records may return empty MX/SPF/DMARC fields
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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