# Bulk Email Deliverability Checker (MX, SPF, DMARC) (`secured_clubhouse/bulk-email-dns-deliverability-verifier`) Actor

Bulk-check domains for MX, SPF, and DMARC email deliverability, plus security.txt and basic HTTP headers. Built for B2B lead lists and AI agent pipelines.

- **URL**: https://apify.com/secured_clubhouse/bulk-email-dns-deliverability-verifier.md
- **Developed by:** [Zein Michaels](https://apify.com/secured_clubhouse) (community)
- **Categories:** Developer tools, Lead generation, Automation
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $5.00 / 1,000 verified domain results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

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 examples already wired to this Actor's own input schema, see the [API](#api) section below.

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`).

# README

## Bulk Email Deliverability (MX, SPF, DMARC) & Domain Security Verifier

Verify hundreds of domains in seconds for **email deliverability readiness** (`MX`, `SPF v=spf1`, `_dmarc` spoofing policy), **RFC 9116 `/.well-known/security.txt`**, and **HTTP server headers**.

#### Features

- **DNS-over-HTTPS (DoH) Verification:** Resolves `MX`, `SPF`, and `_dmarc` TXT records reliably without local UDP resolver bottlenecks.
- **Deliverability Score (0–100):** Flags missing DMARC, monitoring-only `p=none` DMARC, softfail `~all` SPF, or missing MX records.
- **Ready-to-Paste DMARC Remediation:** Generates a tailored `v=DMARC1; p=quarantine; ...` record for any domain missing DMARC protection.
- **Agentic Payments Ready (Pay-Per-Event):** Built for automated AI agent workflows and B2B lead enrichment pipelines.

# Actor input Schema

## `domains` (type: `array`):

List of domain names or URLs to verify MX, SPF, DMARC spoofing protection, HTTP headers, and RFC 9116 security.txt.

## `timeoutMs` (type: `integer`):

Timeout per domain HTTP check in milliseconds.

## Actor input object example

```json
{
  "domains": [
    "github.com",
    "cloudflare.com"
  ],
  "timeoutMs": 8000
}
```

# Actor output Schema

## `results` (type: `string`):

All result items in the default dataset (overview view).

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "domains": [
        "github.com",
        "cloudflare.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("secured_clubhouse/bulk-email-dns-deliverability-verifier").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "domains": [
        "github.com",
        "cloudflare.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("secured_clubhouse/bulk-email-dns-deliverability-verifier").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "domains": [
    "github.com",
    "cloudflare.com"
  ]
}' |
apify call secured_clubhouse/bulk-email-dns-deliverability-verifier --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,secured_clubhouse/bulk-email-dns-deliverability-verifier"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/6ardiFBaWGsdsTMZg/builds/fbh2GE7FAGrfy1XJb/openapi.json