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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 existence.
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/disposable-email)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain is a known disposable/burner provider, whether the address appears to be a role account, and the live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability and fraud-risk assessment.
Example use cases
Screening sign-up emails for fraud
“Before we activate this new user account, check if the email they signed up with — randomuser847@guerrillamail.com — is a disposable or burner address, and whether it has real MX records pointing to a live mail server.”
B2B lead list quality check
“I have a sales lead with the email vp.sales@acmecorp.io — can you verify it's syntactically valid, not a role account, and that acmecorp.io has properly configured MX, SPF, and DMARC DNS records before we add them to our outreach?”
Pre-send campaign deliverability audit
“We're about to email newsletter@bigcompany.com — can you confirm this isn't a role-based address and that its domain has healthy MX and DMARC records so our campaign doesn't bounce or get flagged?”
Technical details
Endpoint
POSThttps://email-verify.agentdiet.dev/v1/disposable-email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email quality check that combines syntax validation, disposable-provider detection, role-account flagging, and live DNS MX/SPF/DMARC verification — especially in agentic or automated B2B workflows where email deliverability and fraud risk both matter. Prefer it over simpler regex-only validators when DNS record health is important, or over domain-only DMARC checkers when you also need per-address disposable and role-account signals.
Side effects
- Invalid or missing email field returns a 400 validation error
- DNS lookup timeouts for obscure or newly registered domains may return inconclusive MX/SPF/DMARC results
- Legitimate domains using non-standard DNS configurations may be falsely flagged
- Disposable provider list may not include the very latest burner services
- Payment failure (402) if x402 payment is not properly attached to the request
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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