# Is Email Hosted By Hetzner Mail (Bulk)

> Is Email Hosted By Hetzner Mail (Bulk) is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-22).

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

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/bulk/email/hosted-by/hetzner-mail?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-email-hosted-by-hetzner-mail-bulk-6acde168
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MgAFn2jk0D1fI-cXubew7

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 is-email-hosted-by-hetzner-mail-bulk-6acde168
```

Example prompt: Can you check this list of domains — acme.com, globex.de, initech.io, and 17 others — and tell me which ones have their email hosted by Hetzner Mail?

## When to prefer this

Use this endpoint when you have multiple domains (up to 20) to check against Hetzner Mail simultaneously, rather than calling the single-domain endpoint repeatedly. It is the right choice for batch enrichment workflows, prospect list processing, or any agent pipeline that accumulates a list of domains before checking. Prefer this over the single endpoint whenever you have 2 or more domains to check in the same workflow step.

## Known failure modes

- Invalid or malformed domain in the input list causes a per-item error rather than a full batch failure
- Exceeding the 20-domain limit may result in a rejection or truncation
- DNS resolution failures via Cloudflare DoH for a domain populate the per-item error field
- Network timeout on concurrent lookups may increase failure count
- Passing an empty input list returns an empty result set

## How this service works

Bulk is email hosted by hetzner 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

An ordered array of per-item results matching the input domain list, each containing whether the domain's email is hosted by Hetzner Mail (boolean or equivalent answer), plus a per-item error field if the check failed for that domain, and a top-level failure count summarizing how many items errored.

## 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/is-email-hosted-by-hetzner-mail-bulk-6acde168/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)