# SPF Authorizes Mandrill Checker

> SPF Authorizes Mandrill 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 2026-10-19).

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

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/email/spf-authorizes/mandrill?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/spf-authorizes-mandrill-checker-5e047366
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TzfucLOkI3RLr-FFef0GL

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-mandrill-checker-5e047366
```

Example prompt: Check whether Mandrill is authorized in the SPF record for acmecorp.com — I want to know if our transactional email integration is properly wired up and what mechanism grants it.

## When to prefer this

Choose this endpoint when you specifically need to verify Mandrill (Mailchimp Transactional) authorization in a domain's SPF record, not SPF validation in general. Ideal for confirming vendor email integration during onboarding, post-DNS-change audits, or competitive/security intelligence to detect whether a domain is using Mandrill as a sending infrastructure.

## Known failure modes

- Domain has no SPF TXT record — returns no authorization with empty record
- Domain does not exist or is unresolvable — DNS lookup fails
- SPF record exists but does not include Mandrill — returns no with record shown
- DoH (Cloudflare DNS-over-HTTPS) is temporarily unavailable — request times out or errors
- Missing or invalid domain query parameter — returns validation error

## How this service works

Does the domain's SPF record authorise mandrill to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for mandrill'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 indicating whether Mandrill is authorized by the domain's SPF record, the specific SPF mechanism (include, ip4, ip6, etc.) that grants the authorization if found, and the full raw SPF TXT record retrieved 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-mandrill-checker-5e047366/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)