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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 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/spf-dmarc-auditor)
Output
Returns structured validation results including: email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), live MX record lookup results, SPF record presence and policy, and DMARC record presence and policy — giving a comprehensive deliverability and trust assessment.
Example use cases
Pre-send list hygiene for email campaign
“Before I send my newsletter, can you verify that leads@acmecorp.io is a real deliverable address — check the MX records, SPF, and DMARC setup, and flag it if it's a role account or burner email?”
B2B lead qualification on signup
“A new user just signed up with the email noreply@tempmail.org — can you check if it's a disposable provider, role account, or has broken DNS so I know whether to approve them?”
Domain email infrastructure audit
“I need to know if our partner's domain fastventures.com has proper MX, SPF, and DMARC records set up — can you verify using their contact email hello@fastventures.com?”
Technical details
Endpoint
GEThttps://github-audit.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email validation that goes beyond simple syntax checking — specifically when you need live DNS MX record verification, SPF/DMARC policy checks, and disposable/burner provider detection in a single call. Ideal for B2B lead enrichment pipelines, signup fraud prevention, pre-send email list hygiene, and agent workflows that need to assess email trustworthiness before acting on an address.
Side effects
- Missing or malformed email parameter returns an error
- Unreachable or non-existent domain may result in empty MX/SPF/DMARC fields
- DNS lookup timeouts for slow-responding nameservers
- Newly registered domains may not yet have SPF/DMARC records even if legitimate
- Disposable provider database may not cover all emerging throwaway services
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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