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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 email-verify.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://email-verify.agentdiet.dev/v1/email-validator)
Output
Returns a structured object indicating whether the email address passes syntax validation, whether the domain has live MX records (confirming deliverability), SPF and DMARC DNS record presence and details, whether the provider is a known disposable/burner service, and whether the local-part is a role account (e.g. admin@, info@).
Example use cases
Screening signups for fake emails
“Before I add new sign-ups to my CRM, can you verify that the email address they submitted — freestuff123@mailinator.com — is real and not from a disposable or burner provider?”
Pre-send email list hygiene
“I'm about to send a campaign to leads@bigcorp.io — can you check if that email is actually deliverable, whether the domain has proper MX records, and if it's a role account I should avoid cold-emailing?”
Email infrastructure audit for a domain
“Can you pull the MX, SPF, and DMARC configuration for the email address ceo@acmeindustries.com and tell me if the domain is properly set up to receive mail?”
Technical details
Endpoint
GEThttps://email-verify.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live validation of an email address that goes beyond simple syntax checking — specifically when you need DNS-level MX record verification, SPF/DMARC configuration checks, disposable provider detection, and role account flagging all in a single call. Prefer this over generic email regex checks when building lead qualification pipelines, email list hygiene workflows, or fraud/spam screening systems where deliverability and provider reputation matter.
Side effects
- Invalid or malformed email address returns a syntax error flag
- Domain with no MX records returns an undeliverable status
- DNS lookup timeouts may result in inconclusive MX/SPF/DMARC results
- Newly registered disposable domains may not yet be in blocklists
- Missing required 'email' query parameter returns a 400 error
- Payment not fulfilled returns HTTP 402 before validation occurs
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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