# SPF Authorizes Campaign Monitor Watch

> SPF Authorizes Campaign Monitor 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 2026-10-24).

Monitors whether a domain's SPF record authorizes Campaign Monitor to send mail, alerting when the authorization status changes.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/spf-authorizes/campaign-monitor?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/spf-authorizes-campaign-monitor-watch-da16b82c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sL_t_aYTdBLLP0lxAPUOa

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 spf-authorizes-campaign-monitor-watch-da16b82c
```

Example prompt: Keep an eye on whether acmecorp.com's SPF record still authorizes Campaign Monitor to send email — let me know if anything changes compared to last time you checked.

## When to prefer this

Choose this endpoint when you need ongoing change detection for Campaign Monitor SPF authorization specifically — not just a one-time lookup. It is ideal for scheduled monitoring pipelines, alerting workflows, or compliance checks where you need to know when a domain's SPF authorization for Campaign Monitor has been added or removed. Use this over a plain SPF check when the delta (before/after) matters, not just the current state.

## Known failure modes

- Domain does not exist or has no SPF record — returns current answer as false with no previous comparison available
- First call for a domain returns no 'changed' comparison since there is no prior stored result
- DNS resolution failure may return an error or inconclusive result
- Stored result older than 90 days is purged, resetting comparison baseline

## How this service works

Change watch for spf authorizes campaign monitor: 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 the current SPF-authorizes-Campaign-Monitor answer (true/false), a changed flag indicating whether it differs from the previous call, the specific fields that changed with before and after values, and the timestamp of when this state was last seen. Previous results are retained for 90 days for comparison.

## 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/spf-authorizes-campaign-monitor-watch-da16b82c/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)