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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 alpha-stream.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 lookups to assess deliverability.
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://alpha-stream.agentdiet.dev/v1/email)
Output
Returns a structured JSON object indicating email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), and live DNS lookup results for MX, SPF, and DMARC records, enabling a full deliverability risk assessment.
Example use cases
Pre-send lead list email hygiene
“Before I import these leads into my CRM, can you verify that user@prospectcompany.com is actually deliverable — check MX records, whether it's a disposable address, and whether it's a role account like info@ or noreply@?”
Signup fraud prevention check
“A new user just registered with temp-mail123@guerrillamail.com — can you tell me if that's a burner or disposable email provider and whether the domain even has valid MX records set up?”
B2B outreach domain security check
“I want to send cold outreach to contact@targetbusiness.io — can you first check if the email address is syntactically valid, if the domain has MX records, and whether they have SPF and DMARC configured?”
Technical details
Endpoint
GEThttps://alpha-stream.agentdiet.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, real-time email deliverability check that goes beyond simple syntax validation — specifically when you need live DNS MX/SPF/DMARC verification combined with disposable provider detection and role account flagging in a single API call. Ideal for lead enrichment pipelines, signup fraud prevention, and pre-send email hygiene in B2B or marketing automation contexts.
Side effects
- Missing or malformed email parameter returns validation error
- DNS lookup timeout for domains with slow or unresponsive nameservers
- Unknown or newly created domains may return incomplete DNS data
- Disposable provider lists may not cover every temporary email service
- Payment required (HTTP 402) if x402 micropayment not included
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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