# Email Domain Routing Check for Vendor Screening

> Email Domain Routing Check 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).

Validates an email address format and checks whether its domain has MX records (DNS-level routing check only, no message sent, no inbox verification).

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-domain-email-domain-check-vendor-screening?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/email-domain-routing-check-for-vendor-screening-214a48f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iiRErmzpMkx4YKbdYh7o7

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability email-domain-routing-check-for-vendor-screening-214a48f6 -d '<json body>'
```

Example prompt: Before we add this new vendor, can you check whether procurement@globalparts-supply.com is a properly formatted email and whether its domain actually has mail routing configured?

## When to prefer this

Use this endpoint when you need a lightweight, fast, DNS-only sanity check on a vendor or counterparty email address — particularly during onboarding workflows where you want to catch bad domains before committing to communication. Prefer this over full inbox verification services when you only need format and MX routing confirmation, not full deliverability testing or SMTP probing. It is ideal for automating vendor screening pipelines where cost and speed matter.

## Known failure modes

- Invalid email format — syntactically malformed address returns a validation failure
- Domain has no MX records — domain exists but is not configured for email routing
- Domain does not exist — NXDOMAIN response from DNS lookup
- DNS timeout — temporary lookup failure due to DNS infrastructure issues
- Missing or empty email field — request rejected due to missing required parameter

## How this service works

Email domain routing check for Vendor screening: Validate an email address shape and check whether its domain has MX records. DNS data only; does not send email or verify that an inbox exists.

## Output

Returns whether the email address is syntactically valid and whether the email's domain has MX records in DNS. Does not send email, does not confirm an inbox exists, and does not authenticate the recipient — DNS-layer routing check only.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "default": "user@example.com",
   "description": "Email address to inspect."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/email-domain-routing-check-for-vendor-screening-214a48f6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)