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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 llms-generator.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-23).
Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX/SPF/DMARC record health.
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://llms-generator.agentdiet.dev/v1/spf-dmarc-auditor)
Output
Returns a structured report covering: email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. admin@, noreply@), live MX record lookup results confirming mail server existence, SPF record presence and content, and DMARC policy record status — giving a comprehensive deliverability and DNS health assessment.
Example use cases
Block fake signups at registration
“Before I create an account for the email address signup@tempmail.org, can you check if it's a real deliverable address or a disposable burner, and whether the domain has proper MX and SPF records?”
Audit lead email before CRM import
“I'm about to add contact@somestartup.io to our CRM — can you verify it's not a role account, confirm it's deliverable, and check that the domain has DMARC configured so our emails won't bounce?”
Pre-send deliverability check for cold outreach
“I want to send a cold email to ceo@prospectcompany.com — can you verify the address is valid, the domain has working MX records, and that SPF and DMARC are properly set up so my message won't get flagged?”
Technical details
Endpoint
POSThttps://llms-generator.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single call that covers all layers of email validation — syntax, disposable/burner detection, role account flagging, and live DNS checks (MX, SPF, DMARC) — rather than calling separate tools for each. Ideal for pre-registration filtering, CRM hygiene, cold outreach validation, or any workflow where email quality and anti-spam DNS configuration both matter. Prefer it over generic SMTP ping tools when DMARC and SPF audit data are needed alongside deliverability.
Side effects
- Invalid or malformed email input returns a syntax error
- DNS lookup timeout if the domain's nameservers are unresponsive
- Non-existent domain returns no MX/SPF/DMARC records found
- Payment failure via x402 if USDC balance is insufficient
- Rate limiting or 429 if too many requests are made in a short period
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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