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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 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: email syntax validity, whether the domain uses a known disposable/burner provider, whether it is a role-based address (e.g. info@, admin@), live MX record presence and values, SPF record existence and content, and DMARC record existence and policy — giving a comprehensive deliverability and risk profile for the address.
Example use cases
Sign-up fraud screening for SaaS
“Before we activate this new trial account, can you check if signup@guerrillamail.com is a disposable or burner email and whether the domain even has valid MX records?”
B2B outreach list hygiene
“I'm about to send a cold email campaign — can you validate info@acmecorp.io to see if it has working MX records, proper SPF and DMARC setup, and whether it's a role account I should avoid?”
CRM data quality audit
“We imported a contact with the email jane.smith@fakemail.net — can you run a full deliverability check on it, including DNS MX, SPF, DMARC, and disposable provider detection, so I know if it's worth keeping?”
Technical details
Endpoint
POSThttps://email-verify.agentdiet.dev/api?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, all-in-one email validation that combines syntax checking, disposable/burner provider detection, role account flagging, and live DNS MX/SPF/DMARC record verification in a single API call — especially in agent workflows requiring real-time email risk assessment at low cost ($0.005/call) with idempotency support.
Side effects
- Invalid or missing email input returns a validation error
- DNS lookup timeouts may cause MX/SPF/DMARC checks to fail or return incomplete data
- Non-existent domain results in no MX records found
- Malformed email string fails syntax check immediately
- Payment failure via x402 results in 402 response blocking the request
- Rate limits or transient DNS failures may cause intermittent errors
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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