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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 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 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://agentdiet.dev/v1/email)
Output
Returns a structured object indicating email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), and the live DNS lookup results for MX, SPF, and DMARC records — giving a complete picture of the email's deliverability health.
Example use cases
Lead email verification before outreach
“Before I add prospect@techstartup.io to my cold email sequence, can you verify it's a real deliverable address — check the MX records, confirm it's not a burner or disposable domain, and see if DMARC is set up?”
Signup fraud detection for new user
“A new user just signed up with throwaway123@mailinator.com — can you check if that's a disposable or burner email provider so I can decide whether to block the registration?”
Email infrastructure audit for a domain
“Can you validate the email deliverability setup for contact@mybrand.com — I need to know if the MX, SPF, and DMARC DNS records are all properly configured and whether it's a role account?”
Technical details
Endpoint
GEThttps://agentdiet.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single, all-in-one email validation that combines syntax checking, disposable provider detection, role account identification, and live DNS MX/SPF/DMARC verification in one call — especially in B2A or agent-driven workflows that require micropayment-native (x402) access and MCP compatibility. Prefer it over basic regex validators when deliverability and DNS health are critical.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeouts if the domain's nameservers are unresponsive
- Unknown or newly registered domains may have incomplete DNS data
- Payment not fulfilled (HTTP 402) if x402 micropayment is not completed
- Very long or unusual email strings may hit minLength/format constraints
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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