# Bulk Email Verifier for Cold Email and Lead Lists

**Use case:** 

Verify a list of email addresses in bulk before you send. Every address gets a safe, risky, invalid or unknown verdict, plus catch-all, disposable and role flags and a 0-100 quality score. No API key needed. $4.00 per 1,000 results, and every row counts as a result.

## Input

```json
{
  "emails": [
    "support@stripe.com",
    "hello@github.com",
    "sales@shopify.com",
    "founder@ycombinator.com"
  ],
  "mode": "auto",
  "concurrency": 5
}
```

## Output

```json
{
  "email": {
    "label": "Email",
    "format": "string"
  },
  "reachable": {
    "label": "Reachable",
    "format": "string"
  },
  "isValid": {
    "label": "Valid",
    "format": "boolean"
  },
  "score": {
    "label": "Score",
    "format": "number"
  },
  "syntax": {
    "label": "Syntax",
    "format": "boolean"
  },
  "smtp": {
    "label": "SMTP",
    "format": "object"
  },
  "isDisposable": {
    "label": "Disposable",
    "format": "boolean"
  },
  "isRole": {
    "label": "Role",
    "format": "boolean"
  },
  "isFree": {
    "label": "Free provider",
    "format": "boolean"
  },
  "hasGravatar": {
    "label": "Gravatar",
    "format": "boolean"
  },
  "suggestion": {
    "label": "Suggestion",
    "format": "string"
  },
  "domain": {
    "label": "Domain",
    "format": "string"
  },
  "source": {
    "label": "Source",
    "format": "string"
  },
  "verifiedAt": {
    "label": "Verified at",
    "format": "string"
  },
  "ok": {
    "label": "OK",
    "format": "boolean"
  },
  "error": {
    "label": "Error",
    "format": "string"
  }
}
```

## How it works

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

The Bulk Email Verifier & Validator: Catch-All Check Actor is ready to run with the inputs already set for "Bulk Email Verifier for Cold Email and Lead Lists". [Sign up or log in](https://console.apify.com/create-task-from-example/B4pjdqxLjuvolybat) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Bulk Email Verifier for Cold Email and Lead Lists" task

The Bulk Email Verifier & Validator: Catch-All Check Actor will start running based on the input automatically. You can also change all the input fields, like emails, verification mode, and more, to match your specific use case.

### 3. Receive the "Bulk Email Verifier for Cold Email and Lead Lists" 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 email, reachable, valid, 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 "Bulk Email Verifier for Cold Email and Lead Lists" task via API](https://apify.com/verifox/verifox-apify.md).

## FAQ

### How much does it cost to verify emails in bulk?

$4.00 per 1,000 results on Free and Starter plans, $3.50 on Scale and $3.00 on Business, plus $0.00005 per run. Every row counts as a result, including addresses that could not be checked.

### How many emails can I verify in one run?

Up to 100,000 in one bulk job. In auto mode, lists over 500 emails use bulk mode and smaller lists run in realtime.

### Does verification send an email to anyone?

No. The checks stop before any message is sent, so nobody receives anything.

### Do I need an API key or a separate account?

No. You only need an Apify account.

### What happens with catch-all domains?

The smtp.catchAll field flags them. Realtime mode runs a deep check and retries once. Bulk mode returns the verdicts available when the job completes, so catch-all addresses can stay risky.

## About this Actor

This example demonstrates how to use [Bulk Email Verifier & Validator: Catch-All Check](https://apify.com/verifox/verifox-apify.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/verifox/verifox-apify.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/verifox/verifox-apify.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`).