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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-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 provider status, role account detection, and live DNS MX/SPF/DMARC record resolution.
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-intel.agentdiet.dev/v1/mx-check)
Output
Returns a structured object indicating whether the email is syntactically valid, whether the domain has live MX records (confirming mail can be received), whether SPF and DMARC DNS records are present and properly configured, whether the provider is a known disposable/burner service, and whether the address is a role account (e.g. admin@, info@).
Example use cases
Pre-send email list scrubbing
“Before I launch this email campaign, check whether contact@newsletter-domain.io is actually deliverable — look up its MX records and tell me if the domain has SPF and DMARC set up properly.”
Blocking disposable signups at registration
“A user just signed up with tempmail123@guerrillamail.com — can you verify whether that's a disposable or burner email provider so I can decide whether to block the registration?”
B2B lead email quality check
“I have a sales lead with the email vp.sales@bigcorpinc.com — validate that it's syntactically correct, that the domain actually accepts mail, and flag it if it's a generic role address like info@ or noreply@.”
Technical details
Endpoint
GEThttps://shopify-intel.agentdiet.dev/v1/mx-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, real-time check covering email syntax, live MX record lookup, and DNS-level deliverability signals (SPF/DMARC) along with disposable and role account detection — ideal for agent workflows doing lead enrichment, user signup validation, or pre-send list hygiene where you need more than a simple regex check but don't want to integrate separate DNS and reputation services.
Side effects
- Malformed or missing email parameter returns a 400 validation error
- DNS lookup timeout if the domain's nameservers are slow or unreachable
- Disposable provider list may not cover newly created burner services
- SPF/DMARC parsing errors for malformed DNS records
- HTTP 402 payment required if x402 micropayment is not provided or fails
- Domain exists but MX records deliberately withheld, leading to false negatives
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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