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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 2026-10-23).
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 provider is a known disposable or burner service, whether the address is a role account (e.g. admin@, info@), and the results of live DNS lookups for MX, SPF, and DMARC records on the email's domain, including deliverability risk assessment.
Example use cases
CRM lead quality screening
“Before I add this prospect to our CRM, can you verify that sarah.jones@techstartup.io is a legitimate deliverable email, not a burner or role account, and that their domain has MX and DMARC records properly configured?”
Signup form disposable email filter
“A new user just signed up with the email temp123@mailinator.com — can you check if that's a disposable or throwaway email address so I can decide whether to block the registration?”
Email infrastructure audit before outreach
“We're about to send a cold outreach campaign — can you validate whether ceo@acmecorp.com is syntactically correct, deliverable, and that acmecorp.com has SPF and DMARC records in place to avoid bounce issues?”
Technical details
Endpoint
POSThttps://hn-pulse.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond syntax checking — specifically when you need live DNS MX, SPF, and DMARC record verification combined with disposable provider and role account detection in a single API call. Prefer this over lightweight regex-only validators when email deliverability and domain authentication posture matter, such as before CRM ingestion, outreach campaigns, or user signup flows.
Side effects
- Invalid or malformed email input returns a syntax error or validation failure
- DNS lookup timeout if the email domain has slow or unresponsive nameservers
- Unknown or very new domains may have no MX/SPF/DMARC records, returned as missing
- Payment failure via x402 if USDC balance is insufficient
- Network errors during live DNS resolution may cause partial results
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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