# is-email-hosted-by-mailgun-watch

> is-email-hosted-by-mailgun-watch is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-19).

Monitors whether a domain's email is hosted by Mailgun and alerts when that status changes, comparing against the previous check stored for 90 days.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/hosted-by/mailgun?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-email-hosted-by-mailgun-watch-cbd8574c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sJM1XTCLzvjmclWS0v3YS

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-mailgun-watch-cbd8574c
```

Example prompt: Keep an eye on whether acmecorp.com is using Mailgun for email hosting and let me know if that status has changed since the last time you checked.

## When to prefer this

Use this endpoint when you need to be alerted to changes in whether a domain uses Mailgun for email hosting, rather than just a one-time lookup. It is ideal for scheduled polling workflows where detecting the transition (on or off Mailgun) matters more than the current state alone. Prefer this over the base check endpoint when you want delta information (what changed, when) rather than just the current answer.

## Known failure modes

- Domain not resolvable — MX lookup fails with DNS error
- No previous check stored — first call returns no comparison data, only current result
- Domain input missing or malformed — request rejected
- Cloudflare DoH unavailable — MX lookup cannot be performed
- 90-day history expired — previous result not available for comparison

## How this service works

Change watch for is email hosted by mailgun: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

## Output

Returns whether the domain's email is currently hosted by Mailgun (true/false), a 'changed' boolean indicating whether the answer differs from the previous check (stored up to 90 days), the specific fields that changed with before/after values, and the timestamp of when it was last seen.

## 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-mailgun-watch-cbd8574c/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)