# SPF Authorizes Mailchimp Checker

> SPF Authorizes Mailchimp Checker is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Checks whether a domain's SPF record authorizes Mailchimp to send email on its behalf, returning a yes/no verdict, the matching mechanism, and the full SPF record.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/email/spf-authorizes/mailchimp?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/spf-authorizes-mailchimp-checker-137f21c9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2Z7-qlzjrcCSRiSQFEDKz

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-mailchimp-checker-137f21c9
```

Example prompt: Can you check whether the SPF record for acmecorp.com authorizes Mailchimp to send email on its behalf — just tell me yes or no, which mechanism matched, and what the full SPF record looks like.

## When to prefer this

Use this endpoint when you need a fast, targeted check of whether Mailchimp specifically is authorized in a domain's SPF record — for confirming email marketing integrations are correctly configured, auditing vendor email permissions, or detecting unauthorized senders. Prefer this over generic SPF parsers when the specific question is about Mailchimp authorization rather than full SPF policy analysis.

## Known failure modes

- Domain has no SPF TXT record — returns no match with empty record
- Domain does not exist or DNS resolution fails — lookup error returned
- SPF record exists but contains syntax errors that prevent parsing
- Rate limiting or upstream Cloudflare DoH unavailability causing lookup failure
- Domain input missing or malformed — request rejected

## How this service works

Does the domain's SPF record authorise mailchimp to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for mailchimp's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.

## Output

Returns a yes/no authorization verdict indicating whether Mailchimp's include or IP mechanisms appear in the domain's SPF TXT record, the specific matching mechanism found, and the complete raw SPF record string fetched via Cloudflare DNS-over-HTTPS.

## 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-mailchimp-checker-137f21c9/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)