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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 shopify-spy.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://shopify-spy.agentdiet.dev/v1/email-check)
Output
Returns a structured object containing email syntax validity, whether the domain is associated with a disposable or burner provider, whether the address is a role account (e.g. admin@, info@), live DNS MX record presence and values, SPF record existence and content, and DMARC policy record details — giving a comprehensive deliverability and risk assessment for the given email address.
Example use cases
Signup form disposable email filter
“Before creating an account for the email user@mailinator.com, check if it's from a disposable or burner email provider and whether the domain has valid MX records so I know if it's a real user.”
Pre-send deliverability check for sales outreach
“I'm about to send a cold outreach email to cto@acmecorp.io — can you verify the email is syntactically valid, the domain has live MX records, and SPF and DMARC are configured so my message won't bounce or get flagged?”
CRM data quality audit for a contact
“We have the email address info@bigco.com in our CRM — check if it's a role account, whether the domain's DNS has MX, SPF, and DMARC records set up, and flag it if it looks undeliverable.”
Technical details
Endpoint
GEThttps://shopify-spy.agentdiet.dev/v1/email-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email validation that combines syntax checking, disposable/burner provider detection, role-account flagging, and live DNS MX/SPF/DMARC record lookups. It is particularly well-suited for autonomous agent workflows requiring payment via x402/USDC micropayments, or when integrating with an MCP-compatible agent stack. Prefer this over basic regex-only validators when deliverability confidence and anti-abuse signals both matter.
Side effects
- Invalid or missing email parameter returns an error response
- Non-existent domain returns MX lookup failure with no records found
- DNS timeout may occur for slow-responding nameservers
- Newly registered domains may lack SPF/DMARC records, returning empty policy fields
- Malformed email strings that pass basic syntax but have unusual TLDs may produce ambiguous 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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