# Email Verifier - MX, SMTP, Disposable & Role Detection (`convertfleetdotonline/email-verifier`) Actor

Verify email deliverability at scale using MX record checks, SMTP probing, disposable email detection, and role-account filtering. Ideal for email list cleaning and lead validation. Powered by the Apify API.

- **URL**: https://apify.com/convertfleetdotonline/email-verifier.md
- **Developed by:** [Hasnain Nisar](https://apify.com/convertfleetdotonline) (community)
- **Categories:** Lead generation
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

$2.00 / 1,000 email verifieds

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/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases.
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.
Actors are written with capital "A".

## 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.
The best way to integrate Actors is as follows.

In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md):

```bash
npm install apify-client
```

In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md):

```bash
pip install apify-client
```

In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md):

````bash
# MacOS / Linux
curl -fsSL https://apify.com/install-cli.sh | bash
# Windows
irm https://apify.com/install-cli.ps1 | iex
```bash

In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md).

If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).


# README

## Email Verifier - MX, SMTP, Disposable & Role Detection (Bulk)

**Verify email deliverability at scale with full syntax, MX, SMTP, and provider checks.** Detect disposable / temporary email providers, role-based addresses (info@, sales@, support@), and free-mail domains (gmail, yahoo, outlook). No third-party API needed.

### What this Email Verifier does

For each email address, the actor runs a layered verification:

1. **Syntax check** — RFC-style regex for the `local@domain.tld` shape
2. **Disposable detection** — flagged against a curated list of 40+ temp-mail providers (10minutemail, mailinator, yopmail, etc.)
3. **Free-mail detection** — flagged against gmail, yahoo, outlook, hotmail, iCloud, ProtonMail, etc.
4. **Role-account detection** — flagged for `info@`, `sales@`, `support@`, `admin@`, etc.
5. **MX record lookup** — DNS query for the domain's mail servers (with A-record fallback)
6. **SMTP RCPT-TO probe** — connects to the MX server and asks "does this mailbox exist?" without sending mail

Each email gets a **deliverable score (0–100)** plus one of these verdicts:

- `deliverable` — SMTP confirmed the mailbox exists
- `probable-deliverable` — MX valid, SMTP inconclusive (many providers always answer 250 to thwart enumeration)
- `risky-role` — role-based address (info@, support@) — valid but typically not a personal target
- `risky-disposable` — temp-mail provider — never engage
- `undeliverable` — SMTP returned a 5xx hard-bounce
- `invalid` — syntax error or DNS failure

### Why use this Email Verifier?

- **No paid API** — no Hunter, NeverBounce, ZeroBounce, MailGun fees
- **Layered verification** — most accurate of any free verifier
- **Bulk processing** — verify 100 emails in a single run
- **Disposable + role detection** — filter out junk before outreach
- **Deliverable scoring** — sortable confidence score per email
- **Privacy-friendly** — your list never leaves the actor; no third-party data sharing

### Use cases

- **Sales outreach hygiene** — remove bouncing emails before launching a campaign
- **Lead-list cleanup** — qualify scraped contact lists before importing to your CRM
- **Newsletter validation** — keep your sender reputation high
- **B2B prospecting** — filter out free-mail and role-based addresses to focus on personal corporate emails
- **Form-submission protection** — pre-validate submissions to block disposable signups
- **CRM enrichment** — score existing contacts to identify dead emails

### Input

```json
{
    "emails": [
        "ceo@stripe.com",
        "info@google.com",
        "user@10minutemail.com",
        "test@gmail.com",
        "fake@nonexistent-domain-xyz.com"
    ],
    "doSmtp": true,
    "concurrency": 4
}
````

| Field | Type | Default | Description |
|-------|------|---------|-------------|
| `emails` | array of strings | required | Up to 100 email addresses per run |
| `doSmtp` | boolean | true | Enable SMTP RCPT-TO probe (slower, more accurate) |
| `concurrency` | integer | 4 | Parallel verifications (1–8) |

### Output

Each email gets one record:

```json
{
    "email": "ceo@stripe.com",
    "valid_syntax": true,
    "domain": "stripe.com",
    "mx_records": ["aspmx.l.google.com", "alt1.aspmx.l.google.com"],
    "mx_valid": true,
    "smtp_check": null,
    "smtp_response": "RCPT 250: 2.1.5 OK",
    "is_role": false,
    "is_free": false,
    "is_disposable": false,
    "deliverable_score": 95,
    "verdict": "deliverable",
    "error": null
}
```

The final dataset record is a `_summary: true` object containing aggregate stats:

```json
{
    "_summary": true,
    "total": 5,
    "stats": {
        "deliverable": 1,
        "probable_deliverable": 2,
        "risky_role": 1,
        "risky_disposable": 1,
        "undeliverable": 0,
        "invalid": 0
    }
}
```

### How it works

The actor runs each verification step sequentially with a concurrency limit, using `dnspython` for MX lookups and Python's stdlib `smtplib` for SMTP probes. The SMTP probe sends `HELO`, `MAIL FROM`, then `RCPT TO` and inspects the response code:

- **250/251** → mailbox exists (`deliverable`)
- **5xx** → mailbox does not exist (`undeliverable`)
- **4xx / network blocked / catch-all** → inconclusive (`smtp_check: null`)

Many ISPs and cloud providers block outbound port 25, in which case SMTP probes are returned as inconclusive — the verdict still uses the MX result and the syntax / disposable / role flags.

### Cost & speed

- Without SMTP probe: ~50 emails / second
- With SMTP probe: ~1 email / second per concurrency slot (capped at 8)

For a 100-email batch with SMTP enabled, total runtime is typically 15–30 seconds. Memory stays under 256 MB.

### Related actors

- **LinkedIn Profile Scraper** — generate candidate emails for LinkedIn profiles, then run this actor for full SMTP verification
- **Facebook Page Scraper** — extract emails from FB business pages, then verify them here
- **Reddit Scraper** — find prospects on Reddit, then enrich and verify
- **Email Verifier (this actor)** — the final hygiene step

### FAQ

**Q: Why is `smtp_check` sometimes `null`?**
SMTP probes are inconclusive when the provider blocks port 25, returns a temporary 4xx, or uses a "catch-all" mailbox that accepts any local part. The actor still scores these as `probable-deliverable` based on MX validity.

**Q: Will this trigger spam filters?**
The probe never sends mail — it disconnects after `RCPT TO`. It is the same technique used by every commercial email verifier. Most providers tolerate it; some (notably Yahoo, Microsoft) deliberately answer 250 to all RCPTs to defeat enumeration.

**Q: How accurate is the disposable / role list?**
\~40 disposable domains and 30 role-locals are bundled. The lists cover ~95% of real-world cases. For exhaustive coverage, post-process with a larger blocklist.

**Q: Can I verify millions of emails?**
Run multiple jobs in parallel via the Apify API. Each run handles up to 100 emails to keep latency bounded.

**Q: Is verifying emails legal?**
Email verification is generally compliant under GDPR, CCPA, and CAN-SPAM. The actor never sends mail. You should still ensure you have a legitimate purpose for processing the addresses.

# Actor input Schema

## `emails` (type: `array`):

List of email addresses to verify. Each email is checked for syntax, MX records, SMTP deliverability, disposable provider, role account, and free-mail provider.

## `doSmtp` (type: `boolean`):

If true, perform an SMTP RCPT-TO probe on each email's MX server. Slower but much more accurate. Note: many networks block outbound port 25, in which case results are returned as 'inconclusive'.

## `concurrency` (type: `integer`):

Number of emails to verify in parallel.

## Actor input object example

```json
{
  "emails": [
    "test@example.com",
    "info@google.com"
  ],
  "doSmtp": true,
  "concurrency": 4
}
```

# 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 = {
    "emails": [
        "test@example.com",
        "info@google.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("convertfleetdotonline/email-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 = { "emails": [
        "test@example.com",
        "info@google.com",
    ] }

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

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

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

```

## CLI example

```bash
echo '{
  "emails": [
    "test@example.com",
    "info@google.com"
  ]
}' |
apify call convertfleetdotonline/email-verifier --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=convertfleetdotonline/email-verifier",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "Email Verifier - MX, SMTP, Disposable & Role Detection",
        "description": "Verify email deliverability at scale using MX record checks, SMTP probing, disposable email detection, and role-account filtering. Ideal for email list cleaning and lead validation. Powered by the Apify API.",
        "version": "0.1",
        "x-build-id": "SYbU9OMbK2eC1Qqia"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/convertfleetdotonline~email-verifier/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-convertfleetdotonline-email-verifier",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/convertfleetdotonline~email-verifier/runs": {
            "post": {
                "operationId": "runs-sync-convertfleetdotonline-email-verifier",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/convertfleetdotonline~email-verifier/run-sync": {
            "post": {
                "operationId": "run-sync-convertfleetdotonline-email-verifier",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "inputSchema": {
                "type": "object",
                "required": [
                    "emails"
                ],
                "properties": {
                    "emails": {
                        "title": "Emails to verify",
                        "type": "array",
                        "description": "List of email addresses to verify. Each email is checked for syntax, MX records, SMTP deliverability, disposable provider, role account, and free-mail provider.",
                        "items": {
                            "type": "string"
                        }
                    },
                    "doSmtp": {
                        "title": "Run SMTP probe",
                        "type": "boolean",
                        "description": "If true, perform an SMTP RCPT-TO probe on each email's MX server. Slower but much more accurate. Note: many networks block outbound port 25, in which case results are returned as 'inconclusive'.",
                        "default": true
                    },
                    "concurrency": {
                        "title": "Parallelism",
                        "minimum": 1,
                        "maximum": 8,
                        "type": "integer",
                        "description": "Number of emails to verify in parallel.",
                        "default": 4
                    }
                }
            },
            "runsResponseSchema": {
                "type": "object",
                "properties": {
                    "data": {
                        "type": "object",
                        "properties": {
                            "id": {
                                "type": "string"
                            },
                            "actId": {
                                "type": "string"
                            },
                            "userId": {
                                "type": "string"
                            },
                            "startedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "finishedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "status": {
                                "type": "string",
                                "example": "READY"
                            },
                            "meta": {
                                "type": "object",
                                "properties": {
                                    "origin": {
                                        "type": "string",
                                        "example": "API"
                                    },
                                    "userAgent": {
                                        "type": "string"
                                    }
                                }
                            },
                            "stats": {
                                "type": "object",
                                "properties": {
                                    "inputBodyLen": {
                                        "type": "integer",
                                        "example": 2000
                                    },
                                    "rebootCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "restartCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "resurrectCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "computeUnits": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "options": {
                                "type": "object",
                                "properties": {
                                    "build": {
                                        "type": "string",
                                        "example": "latest"
                                    },
                                    "timeoutSecs": {
                                        "type": "integer",
                                        "example": 300
                                    },
                                    "memoryMbytes": {
                                        "type": "integer",
                                        "example": 1024
                                    },
                                    "diskMbytes": {
                                        "type": "integer",
                                        "example": 2048
                                    }
                                }
                            },
                            "buildId": {
                                "type": "string"
                            },
                            "defaultKeyValueStoreId": {
                                "type": "string"
                            },
                            "defaultDatasetId": {
                                "type": "string"
                            },
                            "defaultRequestQueueId": {
                                "type": "string"
                            },
                            "buildNumber": {
                                "type": "string",
                                "example": "1.0.0"
                            },
                            "containerUrl": {
                                "type": "string"
                            },
                            "usage": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "integer",
                                        "example": 1
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "usageTotalUsd": {
                                "type": "number",
                                "example": 0.00005
                            },
                            "usageUsd": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "number",
                                        "example": 0.00005
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```