# MailFerret Domain Email Intelligence

> MailFerret Domain Email Intelligence is a paid API for AI agents from mailferret.appin60.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-22).

Given a company domain, returns verified work email patterns, public emails, mail provider info, DMARC policy, and SMTP acceptance status

## Facts

- Endpoint: POST https://mailferret.appin60.com/domain?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mailferret-domain-email-intelligence-f2bf487f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fRgBxyXZxz7oL24uN1a27

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 mailferret-domain-email-intelligence-f2bf487f -d '<json body>'
```

Example prompt: Can you look up the work email pattern and mail provider for stripe.com, and tell me if there are any publicly listed emails I can use to reach their team?

## When to prefer this

Choose this endpoint when you need live, SMTP-verified email intelligence for a company domain rather than static database lookups. It is ideal for B2B sales prospecting, press outreach, or deliverability research where you need the actual email format pattern, provider identity, and real-time mail server acceptance status. Prefer this over generic contact finders when you need structured metadata like DMARC policy and SPF sender list alongside the email data, and when pay-per-verified-result pricing is preferable to subscription models.

## Known failure modes

- Domain not found or does not exist — status field indicates failure
- Domain accepts no mail (accepts_mail: false) — pattern and emails may be null
- SMTP check timeout due to server-side rate limiting or blocking
- Invalid domain format input (minLength 3 not met) — validation error
- Catch-all domain makes individual address verification unreliable
- No public emails found — public_emails returns empty array
- DMARC record absent — dmarc_policy returns null or none

## How this service works

Email intelligence for a company domain: mail provider (Google Workspace, Microsoft 365, Proofpoint...), catch-all status, SaaS tools revealed by SPF (HubSpot, Salesforce, Zendesk, SendGrid...), DMARC policy, public email addresses found on the company's own website with source URLs, and the likely address pattern. Useful before cold outreach or for tech-stack prospecting.

## Output

Returns a JSON object with the company domain, mail acceptance status, email provider (e.g. Google Workspace), catch-all flag, DMARC policy, a list of publicly discovered email addresses with their sources, the likely email pattern (e.g. {first}@company.com), and a list of email-sending services found in the SPF record.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "minLength": 3,
       "description": "Company domain or website, e.g. zapier.com"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "domain": "zapier.com",
  "status": "ok",
  "provider": "google_workspace",
  "catch_all": true,
  "accepts_mail": true,
  "dmarc_policy": "reject",
  "public_emails": [
   {
    "role": true,
    "email": "press@zapier.com",
    "source": "https://zapier.com/press"
   }
  ],
  "likely_pattern": null,
  "email_senders_from_spf": [
   "Google Workspace",
   "Mailgun",
   "HubSpot",
   "Zendesk",
   "Qualtrics"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mailferret-domain-email-intelligence-f2bf487f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mailferret.appin60.com](https://www.zero.xyz/host/mailferret.appin60.com/llms.txt)