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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 mcp-compiler.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://mcp-compiler.agentdiet.dev/v1/disposable-email)
Output
Returns a structured object indicating whether the email passed syntax validation, whether the domain belongs to a known disposable or burner provider, whether it is a role-based address, and the live DNS lookup results for MX, SPF, and DMARC records — enabling a full deliverability and risk assessment.
Example use cases
Screening sign-up emails for fraud
“Before I create an account for this new user, can you verify that 'signup@guerrillamail.com' isn't a disposable or burner email and that its domain actually has working mail servers?”
Pre-send validation for email campaigns
“I'm about to send a marketing blast — can you check whether 'contact@example-biz.io' is deliverable, has proper MX records, and whether the domain has SPF and DMARC configured?”
Flagging role accounts in a B2B leads list
“I have a lead email 'noreply@bigcorp.com' — can you tell me if it's a role account that would bounce or be unmonitored, and whether the domain's DNS looks healthy for deliverability?”
Technical details
Endpoint
GEThttps://mcp-compiler.agentdiet.dev/v1/disposable-email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, comprehensive email health check that combines syntax validation, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC verification — especially in agent workflows requiring fraud screening, lead enrichment, or pre-send deliverability checks. It is particularly useful when you need real-time DNS lookups rather than static blocklist comparisons.
Side effects
- Missing or empty email parameter returns a validation error
- Malformed email string may return a syntax failure without DNS checks
- DNS lookup timeouts may result in incomplete MX/SPF/DMARC data
- Unknown or very new domains may not have DNS records indexed yet
- Rate limiting or payment failure (HTTP 402) if USDC micropayment is not settled
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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