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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 mesh.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://mesh.agentdiet.dev/v1/email-validator)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain belongs to a known disposable/burner provider, whether the local part is a role account (e.g. admin@, noreply@), and whether live DNS lookups confirm the presence of MX, SPF, and DMARC records.
Example use cases
Scrub leads before email campaign
“Before I send this outreach campaign, check if sales@acmecorp.io is a legitimate deliverable address — does it have valid MX records, is it a role account, and is the domain using SPF and DMARC?”
Block burner emails at signup
“A user just signed up with user123@guerrillamail.com — can you tell me if that's a disposable or burner email provider so I can decide whether to block the registration?”
Audit domain email hygiene
“Check the email support@startup.xyz and tell me whether the domain has proper MX, SPF, and DMARC DNS records configured — I want to know if their email setup is legitimate.”
Technical details
Endpoint
GEThttps://mesh.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email validation that goes beyond simple regex — specifically when you need live DNS MX/SPF/DMARC verification combined with disposable provider and role account detection in a single call. Prefer it over basic syntax checkers when building lead qualification pipelines, signup fraud prevention, or outreach list hygiene workflows.
Side effects
- Invalid or malformed email input returns a syntax error flag
- DNS lookup timeout if the domain's nameservers are slow or unresponsive
- Unknown or newly registered domains may lack MX/SPF/DMARC records, returning false negatives
- Disposable provider lists may not cover newly created throwaway services
- Role account detection relies on pattern matching and may miss non-standard role prefixes
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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