# Find domains vulnerable to email spoofing

**Use case:** 

Keep only domains with no enforced DMARC policy, where anyone can send email as them, as a lead list for MSPs and email security vendors.

## Input

```json
{
  "domains": [
    "apify.com",
    "example.com",
    "github.com",
    "zapier.com"
  ],
  "onlySpoofable": true,
  "maxDomains": 10000
}
```

## Output

```json
{
  "domain": {
    "label": "Domain",
    "format": "string"
  },
  "grade": {
    "label": "Grade"
  },
  "score": {
    "label": "Score",
    "format": "number"
  },
  "spoofable": {
    "label": "Spoofable"
  },
  "spf.all": {
    "label": "SPF all"
  },
  "dmarc.policy": {
    "label": "DMARC policy"
  },
  "dkim.selectorsFound": {
    "label": "DKIM selectors"
  },
  "mtaSts.mode": {
    "label": "MTA-STS"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The Email Security Grader - SPF, DMARC, DKIM, MTA-STS (Bulk) Actor is ready to run with the inputs already set for "Find domains vulnerable to email spoofing". [Sign up or log in](https://console.apify.com/create-task-from-example/j4jdGS9xuEl0nh7he) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Find domains vulnerable to email spoofing" task

The Email Security Grader - SPF, DMARC, DKIM, MTA-STS (Bulk) Actor will start running based on the input automatically. You can also change all the input fields, like domains, only spoofable domains, and more, to match your specific use case.

### 3. Receive the "Find domains vulnerable to email spoofing" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as domain, grade, score, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Find domains vulnerable to email spoofing" task via API](https://apify.com/dennydevelops/email-security-grader.md).

## FAQ

### What does the email security grade cover?

The Email Security Grader checks SPF, DMARC, DKIM, MTA-STS and BIMI for each domain and gives an A to F grade with the specific issues found.

### What does spoofable mean?

The Email Security Grader marks a domain spoofable when it has no enforced DMARC policy, so anyone can send email that appears to come from it.

### Who uses email security grades?

The Email Security Grader is used by MSPs, security vendors and IT teams to find domains that need DMARC and email authentication fixes.

## About this Actor

This example demonstrates how to use [Email Security Grader - SPF, DMARC, DKIM, MTA-STS (Bulk)](https://apify.com/dennydevelops/email-security-grader.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/dennydevelops/email-security-grader.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/dennydevelops/email-security-grader.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).