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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/v1/email-validator)
Output
Returns a structured object containing: email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), live DNS MX record presence and values, SPF record presence and content, DMARC record presence and policy, and an overall deliverability assessment.
Example use cases
Block disposable emails at signup
“Before I create an account for the user who signed up with temp-mail123@mailinator.com, check if that email is from a disposable or burner provider and whether it's actually deliverable.”
Validate leads before CRM import
“I have a lead with email contact@acmecorp.io — can you verify its syntax is correct, confirm there are live MX records on that domain, and flag if it's a role account before I add it to the CRM?”
Audit email authentication for a domain
“Check the email address security@bigbank.com and tell me whether bigbank.com has SPF and DMARC records properly configured, and whether the MX setup looks healthy.”
Technical details
Endpoint
POSThttps://email-verify.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, real-time multi-signal email check in a single call — combining syntax validation, disposable/burner detection, role account detection, and live DNS MX/SPF/DMARC lookups. It is especially suited for agent workflows requiring B2A-native payment via x402 USDC micropayments and MCP/IETF MPP compatibility, making it ideal for agentic pipelines that need to validate emails at scale without managing per-user API keys.
Side effects
- Invalid or malformed email input returns a syntax error response
- DNS lookup timeout if the domain's nameservers are slow or unreachable
- Unknown domain with no MX records returns undeliverable status
- Disposable provider databases may lag newly created throwaway services
- Network errors during live DNS resolution may return partial results
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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