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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 github-audit.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 existence.
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://github-audit.agentdiet.dev/v1/mx-check)
Output
Returns a structured object indicating email syntax validity, whether the provider is a known disposable or burner service, whether the address is a role account (e.g. admin@, info@), and live DNS lookup results for MX records (deliverability), SPF record presence, and DMARC record presence.
Example use cases
Lead quality screening before outreach
“Before we send the sales sequence, can you verify that the email address prospect@startupxyz.io is real and deliverable — check MX, SPF, DMARC and flag it if it's a burner or role account?”
User signup fraud prevention
“A new user just signed up with the email temp99@mailinator.com — can you check if that's a disposable or throw-away email address and whether the domain even has valid MX records?”
Email authentication audit for a domain
“I want to know if the domain techcorp.com has proper email authentication set up — can you check whether they have valid SPF and DMARC DNS records configured?”
Technical details
Endpoint
GEThttps://github-audit.agentdiet.dev/v1/mx-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email validation in a single call — covering syntax, live DNS MX/SPF/DMARC records, disposable provider detection, and role account flagging simultaneously. Prefer it over simple syntax checkers when deliverability and fraud-risk signals are both required, especially for lead enrichment pipelines, user onboarding flows, or pre-send campaign hygiene.
Side effects
- Invalid or malformed email syntax causes immediate validation failure
- Non-existent domain returns no MX records found
- DNS lookup timeout may result in inconclusive deliverability status
- Disposable provider list may not cover all emerging burner services
- Role account detection limited to known patterns and may miss custom role addresses
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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