# Is Email Hosted by Symantec MessageLabs

> Is Email Hosted by Symantec MessageLabs is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Checks whether a domain's email is hosted by Symantec MessageLabs by looking up its MX records and matching them against known MessageLabs mail-exchanger patterns.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/email/hosted-by/symantec-messagelabs?utm_source=zero.xyz
- Price: $0.01/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-symantec-messagelabs-5eac17f9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Yh1WenIIVSNC4rfEAA4iJ

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-symantec-messagelabs-5eac17f9
```

Example prompt: Can you check if acmecorp.com has its email hosted by Symantec MessageLabs? I want to know if their MX records match MessageLabs patterns.

## When to prefer this

Choose this endpoint when you need to specifically determine whether a single domain's email is routed through Symantec MessageLabs (now part of Broadcom). It is ideal for sales intelligence workflows, pre-migration audits, or competitive research where MessageLabs provider detection is the specific goal. Use sibling bulk endpoints if checking multiple domains at once. Prefer this over generic MX lookup tools when you need pattern-matched provider detection rather than raw DNS data.

## Known failure modes

- Domain has no MX records — returns no match with empty MX host list
- Invalid or non-existent domain name — DNS lookup fails with error
- Cloudflare DoH unavailable — lookup fails due to upstream DNS error
- Domain uses MessageLabs-adjacent but unrecognized patterns — may return false negative

## How this service works

Is the domain's email hosted by symantec messagelabs? Looks up the MX records (Cloudflare DoH) and matches them against symantec-messagelabs'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 Symantec MessageLabs, along with the full list of MX hosts discovered via Cloudflare DNS-over-HTTPS and which of those hosts matched against known MessageLabs 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-symantec-messagelabs-5eac17f9/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)