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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 llms-generator.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://llms-generator.agentdiet.dev/v1/email-validator)
Output
Returns a structured object indicating whether the email address is syntactically valid, whether the domain has live MX records (mail server reachability), whether SPF and DMARC DNS records are present and well-formed, whether the provider is a known disposable or burner service, and whether the address appears to be a role account (e.g. info@, support@, admin@).
Example use cases
Lead list email hygiene check
“Before we import these leads, can you verify that sarah.jones@prospectcompany.io is a legitimate email — check its MX records, SPF, DMARC, and flag it if it's a disposable or role account?”
User signup fraud prevention
“A new user just tried to register with temp-mailbox@guerrillamail.com — can you run a full deliverability and disposable-provider check on that email so I know if we should block the signup?”
Cold outreach domain health audit
“I'm about to send a cold email campaign to contact@bigclient.com — can you verify the domain's MX, SPF, and DMARC records are properly configured and that the address isn't a generic role account?”
Technical details
Endpoint
GEThttps://llms-generator.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email check that combines syntax validation, live DNS MX/SPF/DMARC lookups, disposable provider detection, and role-account flagging in a single call — particularly useful in B2B lead enrichment, user registration flows, or pre-send deliverability audits where you need more than just a regex or format check.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout for MX/SPF/DMARC records if domain's nameservers are slow or unreachable
- Unknown or newly registered domain may return inconclusive MX results
- Payment/402 failure if USDC balance is insufficient for the $0.005 per-call fee
- False negative on disposable detection if provider database is not up to date
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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