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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 2026-10-23).
Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX, SPF, and DMARC record presence.
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/spf-dmarc-auditor)
Output
Returns a structured object indicating whether the email address passes syntax checks, whether the domain is a known disposable or burner provider, whether the address is a role account (e.g. admin@, info@), and whether the domain's DNS records include valid MX, SPF, and DMARC entries — giving an overall deliverability assessment.
Example use cases
Lead list email scrubbing
“Before we import this lead list, can you check if contact@acmecorp.io is a valid deliverable address, not a throwaway or role account, and whether its domain has MX and DMARC records set up?”
User signup fraud prevention
“Someone just tried to register with temp-mail123@guerrillamail.com — can you tell me if that's a disposable burner email and whether the domain even has real mail server records?”
Email infrastructure compliance audit
“We're auditing our partner domain outreach list — can you verify that hello@partnerco.net has proper SPF and DMARC DNS records configured, and that it's not a role-based or throwaway address?”
Technical details
Endpoint
POSThttps://email-verify.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email audit covering syntax, disposable provider detection, role account flagging, and live DNS MX/SPF/DMARC verification — especially for B2B lead enrichment, user onboarding fraud prevention, or email deliverability compliance workflows where all four checks are needed together rather than separately.
Side effects
- Malformed or empty email input returns a validation error
- DNS lookup timeouts may result in inconclusive MX/SPF/DMARC results
- Unknown or very new domains may not have entries in disposable provider databases
- Rate limiting or payment failure (HTTP 402) if USDC micropayment is not processed
- Temporary DNS failures may cause false negatives on live record checks
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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