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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 token-intel.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 domain 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://token-intel.agentdiet.dev/v1/mx-check)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain is associated with a known disposable/burner provider, whether it is a role-based account (e.g. admin@, support@), and the live DNS status of MX, SPF, and DMARC records for the email's domain.
Example use cases
Pre-send email list scrubbing
“Before I send this campaign, check if newsletter@techstartup.io is a legit deliverable address — I want to know if it has working MX records and isn't a throwaway or role account.”
User signup fraud screening
“A new user just registered with temp-mail@guerrillamail.com — can you verify if that's a disposable or burner email and whether the domain has any real mail infrastructure like MX and SPF records?”
B2B lead email qualification
“I'm about to reach out to a sales lead at info@prospectcorp.net — can you check if that email is deliverable, whether it's a role account, and if the domain has DMARC configured?”
Technical details
Endpoint
GEThttps://token-intel.agentdiet.dev/v1/mx-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive single-call email check covering syntax, deliverability, DNS security posture (SPF/DMARC), and disposable/role-account risk. It is ideal for pre-send list hygiene, signup fraud screening, and B2B lead qualification where you need live DNS verification rather than just format checking.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout may result in inconclusive MX/SPF/DMARC status
- Domain does not exist in DNS returns no-MX / undeliverable result
- Newly registered domains may not yet have propagated DNS records
- Disposable provider lists may lag behind newly created throwaway services
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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