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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/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://email-verify.agentdiet.dev/api)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain has live MX records, whether SPF and DMARC DNS records are present and configured, whether the provider is a known disposable/burner service, and whether the address appears to be a role account (e.g. info@, admin@).
Example use cases
Lead list email hygiene
“I have a lead I'm about to email — can you verify that sarah.jones@prospectcorp.io is actually deliverable and not a throwaway address, and check whether the domain has proper MX and SPF records set up?”
Signup fraud prevention check
“Before I create an account for this new user, can you check if the email they provided — tempuser123@mailnull.com — is a disposable or burner address, and whether it even has valid MX records?”
Cold outreach domain audit
“I'm about to run a cold email campaign and want to know if marketing@targetdomain.com is a role account and whether targetdomain.com has DMARC configured — can you run a full email deliverability check on it?”
Technical details
Endpoint
GEThttps://email-verify.agentdiet.dev/api?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live email validation that goes beyond simple syntax checks — specifically when you need to confirm DNS-level deliverability (MX records), detect throwaway/burner addresses, identify role accounts, and verify SPF/DMARC policy presence in a single call. Prefer this over basic regex validators or static blocklist checkers when real-time DNS accuracy matters, such as during lead qualification, signup fraud prevention, or pre-campaign email hygiene.
Side effects
- Missing or malformed email parameter returns an error response
- DNS lookup timeouts for obscure or newly registered domains may result in inconclusive MX/SPF/DMARC results
- Disposable provider detection may miss very new or niche burner services not yet in the blocklist
- Payment required (HTTP 402) if x402 micropayment is not included or fails
- Extremely long or unusual email strings may fail syntax parsing edge cases
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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