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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 email-verify.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://email-verify.agentdiet.dev/v1)
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@, support@), live MX record presence and details, SPF record existence and content, and DMARC policy record status — giving an overall deliverability verdict.
Example use cases
Sign-up fraud screening for SaaS
“Before I activate this new account, can you verify that signup@tempmail.io is a legitimate email — check if it's from a disposable provider, has valid MX records, and passes SPF and DMARC?”
Lead list hygiene before outreach
“I'm about to send a sales email to cto@acmecorp.com — can you confirm this address is deliverable by checking its MX, SPF, and DMARC records and making sure it's not a catch-all or role account?”
Email validation in onboarding pipeline
“A new user signed up with info@startup.io — can you tell me if that's a role account, whether the domain has working MX records, and if there's a DMARC policy in place?”
Technical details
Endpoint
GEThttps://email-verify.agentdiet.dev/v1?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single, unified check covering email syntax, disposable/burner detection, role-account flagging, and live DNS record verification (MX, SPF, DMARC) in one call — especially in B2B lead enrichment pipelines, SaaS sign-up fraud prevention, or pre-campaign deliverability screening where DNS-level truth matters more than a simple format check.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS timeout for low-TTL or unreachable domains may result in inconclusive MX/SPF/DMARC results
- Non-existent TLDs or garbage input strings fail syntax validation immediately
- Private or internal domain names with no public DNS records return unresolvable status
- Payment not completed (HTTP 402) blocks the request under x402 micropayment protocol
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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