# Bulk Yahoo Mail Hosting Checker

> Bulk Yahoo Mail Hosting Checker is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-20).

Checks up to 20 domains in a single call to determine whether each domain's email is hosted by Yahoo Mail, returning results in input order with per-item error fields and a failure count.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/bulk/email/hosted-by/yahoo-mail?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bulk-yahoo-mail-hosting-checker-3624848c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1VQRrf3wlEf-ocFszjXlC

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 bulk-yahoo-mail-hosting-checker-3624848c
```

Example prompt: Can you check all these domains at once and tell me which ones are hosted on Yahoo Mail: example.com, acme.org, testco.net, and the other 16 domains on my list?

## When to prefer this

Use this endpoint when you need to check Yahoo Mail hosting for multiple domains (up to 20) in one call rather than making 20 individual requests. Prefer this over the single endpoint when processing a list from a CRM, prospect database, or audit export. At $0.10 per batch call, it is significantly more cost-efficient than calling the single endpoint 20 times.

## Known failure modes

- Invalid or malformed domain name causes per-item error with error field populated
- More than 20 domains submitted exceeds batch limit
- DNS lookup failure for a domain results in per-item error rather than whole-batch failure
- Network timeout from Cloudflare DoH resolver causes per-item error
- Payment not received or x402 auth failure blocks the entire batch call

## How this service works

Bulk is email hosted by yahoo mail: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.

## Output

Returns an ordered array of results matching the input domain list. Each item contains a boolean indicating whether that domain's email is hosted by Yahoo Mail, plus a per-item error field if the lookup failed. A top-level failure count summarizes how many items encountered errors.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bulk-yahoo-mail-hosting-checker-3624848c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from email.intel.rallylive.ca](https://www.zero.xyz/host/email.intel.rallylive.ca/llms.txt)