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Mail Exchanger (MX) Lookup for Vendor Screening
x402
Mail Exchanger (MX) Lookup for Vendor Screening is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Returns the MX hosts and their delivery priorities for a given domain via DNS lookup, intended for vendor screening workflows.
Price / call$0.01
Success—
StatusUnknown
How this service works
Mail exchanger lookup for Vendor screening: Return the domain MX hosts and their delivery priorities. DNS data only; does not send email or verify that an inbox exists.
Output
Returns a list of MX record entries for the queried domain, each containing the mail exchanger hostname and its numeric delivery priority (lower number = higher priority). DNS data only — does not verify inbox existence or send email.
Example use cases
Vendor onboarding email infrastructure check
“We're onboarding Acme Corp as a vendor — can you pull the MX records for acmecorp.com so I can verify they have a properly configured mail server before we add them to our approved vendor list?”
Phishing risk assessment for supplier domain
“I need to screen a new supplier at supplierco.net — look up their MX records so I can see if they're using a reputable mail provider or something suspicious.”
Procurement due diligence domain audit
“As part of our procurement review, can you fetch the MX hosts and priorities for globalparts.io so I know what email infrastructure they're running?”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/demand-domain-mx-records-vendor-screening?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to quickly determine the mail exchange infrastructure for a vendor or partner domain as part of a screening or due diligence workflow. It is ideal when you need raw DNS MX data (hosts + priorities) without email sending, inbox verification, or SMTP connectivity checks. Prefer this over full email validation services when DNS-only data suffices and cost efficiency matters ($0.01/call).
Side effects
- Domain does not exist or has no MX records — returns empty result or DNS NXDOMAIN
- Malformed domain input — may return an error or unexpected result
- Temporary DNS resolution failure — transient error, retry recommended
- Private or internal domains not publicly resolvable — no results returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Public DNS domain, e.g. example.com. |
Tags
x402
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