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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.
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://github-audit.agentdiet.dev/v1/email)
Output
Returns a structured object indicating whether the email address passes syntax validation, whether the domain is associated with a known disposable/burner provider, whether the local part is a role account (e.g. info@, noreply@), and the live DNS status of MX, SPF, and DMARC records for the email's domain.
Example use cases
Lead list email hygiene check
“Before we import this lead into our CRM, can you verify that sarah.jones@techcorp.io is a legitimate email — check that it's not a throwaway address, not a generic role account, and that the domain actually has working mail servers set up?”
Sign-up fraud detection
“A new user just registered with the email temp12345@mailnull.com — can you check if that's a disposable or burner email address so we can decide whether to flag the account?”
Email campaign deliverability audit
“We're about to send a campaign to marketing@bigcompany.com — can you verify that domain has proper MX records and that SPF and DMARC are configured so our emails won't bounce or get flagged as spam?”
Technical details
Endpoint
GEThttps://github-audit.agentdiet.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live email validation that goes beyond simple syntax checking — specifically when you need DNS-level MX/SPF/DMARC verification, disposable provider detection, and role account flagging all in a single call. Prefer it over basic regex validators when deliverability and fraud risk matter, such as before adding contacts to CRMs, marketing lists, or user registrations.
Side effects
- Missing or malformed email parameter returns a validation error
- Domain has no MX records — email is undeliverable
- DNS lookup timeout if the domain's nameservers are unresponsive
- Unknown or very new domain may lack SPF/DMARC records, returned as missing rather than invalid
- Disposable provider database may not include all burner providers, 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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