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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 health.
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/spf-dmarc-auditor)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain uses a known disposable or burner provider, whether the local part is a role account (e.g. admin@, info@), and the live DNS state of MX, SPF, and DMARC records including policy values and potential misconfigurations.
Example use cases
Pre-signup email gate for SaaS onboarding
“Before we create this user's account, verify that the email they submitted — signup@tempmail.io — is not from a disposable provider and actually has live MX records so we know it's reachable.”
B2B outreach list hygiene check
“I have a lead email address — cfo@bigcorp.com — can you confirm it's deliverable by checking the domain's MX setup, and also tell me if it's a role account I should avoid cold-emailing?”
Email security posture audit for a domain
“Check whether the domain behind marketing@startupco.io has proper SPF and DMARC records configured, and flag any issues that could hurt deliverability or leave it open to spoofing.”
Technical details
Endpoint
GEThttps://hn-pulse.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, multi-dimensional email quality check covering syntax, deliverability (live MX), anti-spoofing posture (SPF/DMARC), and risk signals (disposable/role) without running separate DNS lookups. Ideal for pre-signup validation, CRM hygiene, and B2B lead enrichment pipelines where a bad email wastes budget or triggers spam filters.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout if the domain's nameservers are slow or unreachable
- Unknown or unregistered domain results in no MX/SPF/DMARC records found
- Disposable provider database may not cover newly created burner domains
- Non-standard or private TLDs may produce inconclusive 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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