# is-email-hosted-by-barracuda

> is-email-hosted-by-barracuda is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Checks whether a domain's email is hosted by Barracuda by looking up MX records via Cloudflare DoH and matching against Barracuda's mail-exchanger patterns.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/email/hosted-by/barracuda?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-email-hosted-by-barracuda-a3b42a27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xNgYxNkMhw0UwwD5PsMmz

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-barracuda-a3b42a27
```

Example prompt: Can you check if acme.com's email is hosted by Barracuda? I need to know whether their MX records point to Barracuda's mail servers.

## When to prefer this

Use this endpoint when you specifically need to detect Barracuda as an email hosting provider for a domain, particularly for sales intelligence, deliverability research, or pre-migration audits. It is purpose-built for Barracuda pattern matching rather than generic MX record inspection, making it more reliable than manually parsing MX records. Prefer it over general DNS lookup tools when Barracuda-specific provider detection is the explicit goal.

## Known failure modes

- Domain does not exist or has no MX records — returns no match with empty MX host list
- DNS lookup failure via Cloudflare DoH — may return an error or inconclusive result
- Domain uses a custom or aliased MX hostname that doesn't match known Barracuda patterns — false negative possible
- Invalid or malformed domain input — likely returns an error response

## How this service works

Is the domain's email hosted by barracuda? Looks up the MX records (Cloudflare DoH) and matches them against barracuda'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 Barracuda, along with the full list of MX hosts found via Cloudflare DoH and which specific MX records matched Barracuda'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-barracuda-a3b42a27/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)