# Is Email Hosted by Zendesk Mail

> Is Email Hosted by Zendesk Mail is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Checks whether a domain's email is hosted by Zendesk Mail by querying MX records via Cloudflare DoH and matching against Zendesk Mail exchanger patterns.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/email/hosted-by/zendesk-mail?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-email-hosted-by-zendesk-mail-fced7505
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_g6fvwBX7o2vJI0t2vM4_V

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-zendesk-mail-fced7505
```

Example prompt: Can you check whether acme.com has its email hosted by Zendesk Mail — I want to know if their MX records match Zendesk's mail exchangers?

## When to prefer this

Choose this endpoint when you need to definitively determine whether a specific domain's inbound email is handled by Zendesk Mail, particularly for sales prospecting (qualifying Zendesk customers), deliverability audits, or pre-migration planning. Prefer this over generic MX lookup tools when you want Zendesk Mail-specific pattern matching rather than raw DNS data.

## Known failure modes

- Domain does not exist or has no MX records — returns no match with empty MX list
- Cloudflare DoH temporarily unavailable — may return a DNS lookup error
- Domain input missing or malformed — returns a validation or bad request error
- Zendesk Mail changes its MX patterns — results may be stale until pattern list is updated

## How this service works

Is the domain's email hosted by zendesk mail? Looks up the MX records (Cloudflare DoH) and matches them against zendesk-mail's mail-exchanger patterns, returning yes/no, the MX hosts and which matched. Provider detection for deliverability, sales and migration work. $0.01 per lookup.

## Output

Returns a yes/no answer indicating whether the domain's email is hosted by Zendesk Mail, along with the full list of MX host records retrieved via Cloudflare DoH and which specific MX hosts matched Zendesk Mail's known mail-exchanger patterns.

## 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-zendesk-mail-fced7505/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)