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WebsterBerry Synaptic Email/Domain Validator
x402
WebsterBerry Synaptic Email/Domain Validator is a paid API for AI agents from synaptic.websterberrymarketing.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-21).
Validates an email address or domain for outreach readiness by checking syntax, MX records, SPF/DMARC configuration, disposable/role-based detection, free-mail flag, and domain age.
Price / call$0.005
Success—
StatusUnknown
How this service works
Validate an email address or domain before outreach: syntax, MX records, SPF and DMARC, disposable and role-based detection, free-mail flag and domain age.
Output
Returns a structured report on the email or domain including: syntax validity, MX record presence and details, SPF and DMARC record status, whether the address is from a disposable/temporary provider, whether it is a role-based address (e.g. info@, admin@), whether the domain is a known free-mail provider, and the age of the domain.
Example use cases
Pre-outreach email list scrubbing
“I'm about to send a cold email campaign — can you validate marketing@techstartup.com and flag whether it's role-based, disposable, or missing MX records before I add it to my sequence?”
New lead domain health check
“A prospect just signed up with the domain newbizventures.co — can you check whether that domain has valid MX and DMARC records and tell me how old it is? I want to know if it's legit before I invest time in them.”
CRM hygiene before import
“I have an email address support@quickfixtools.net that I'm about to import into our CRM — please verify it's not role-based or from a disposable provider, and confirm the domain has proper SPF and MX records set up.”
Technical details
Endpoint
GEThttps://synaptic.websterberrymarketing.com/agents/06-email-domain-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive pre-outreach email hygiene check that combines syntax validation, DNS/MX record lookup, email authentication policy checks (SPF/DMARC), and deliverability signals (disposable, role-based, free-mail, domain age) in a single call. It is especially useful for B2B sales and marketing workflows where deliverability and sender reputation matter. Prefer it over basic syntax validators when you need DNS-level and policy-level signals, and over generic WHOIS lookups when email-specific deliverability context is required.
Side effects
- Neither email nor domain query parameter provided — returns error
- Invalid or malformed email syntax passed — may return syntax failure with no DNS checks
- Domain does not exist or has no DNS records — MX/SPF/DMARC checks return negative
- Rate limiting or upstream DNS lookup timeout — transient failure
- Private or reserved domain names may produce incomplete results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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