# is-email-hosted-by-microsoft-365-bulk

> is-email-hosted-by-microsoft-365-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 at once to determine whether each is hosted on Microsoft 365 email, returning results in input order with per-item error details and a failure count.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/bulk/email/hosted-by/microsoft-365?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-microsoft-365-bulk-9ea7257a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5Soctp_2z8PbVhyQfHf3q

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-microsoft-365-bulk-9ea7257a
```

Example prompt: Can you check these 15 domains — acme.com, contoso.com, fabrikam.com, northwind.com, tailspin.com, adventure-works.com, litware.com, proseware.com, woodgrove.com, cohovineyard.com, cohowinery.com, cohovaneyards.com, datum.com, lucernepublishing.com, wingtiptoys.com — and tell me which ones are hosted on Microsoft 365?

## When to prefer this

Choose this endpoint when you have a list of 2–20 domains and need Microsoft 365 hosting status for all of them in a single call. It processes domains concurrently and returns results in input order, making it far more efficient than looping the single-domain endpoint. Prefer this over the single endpoint whenever batch throughput or cost-per-domain matters, and over the watch endpoint when you need an immediate one-shot answer rather than ongoing change monitoring.

## Known failure modes

- Domain unreachable or DNS lookup fails — item-level error field populated, counted in failure total
- Batch exceeds 20 domains — request rejected or truncated
- Network timeout during concurrent DNS resolution — partial results with errors on affected items
- Malformed domain string in input — per-item error returned for that entry
- Payment not received or x402 authorization fails — entire batch call rejected

## How this service works

Bulk is email hosted by microsoft 365: 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 list of results matching the input domains, each containing a boolean indicating whether the domain is hosted on Microsoft 365, a per-item error field (null on success), and an overall failure count for the batch.

## 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-microsoft-365-bulk-9ea7257a/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)