# Bulk Email Verifier - MX, Syntax & Deliverability Score (`oriented_wallpaper/email-verifier`) Actor

Verify and clean email lists with no API key, without sending any email. Checks syntax, resolves MX (DNS-over-HTTPS), flags disposable & role accounts, detects free webmail, and scores deliverability 0-100 (deliverable / risky / undeliverable). Read-only. Export CSV/JSON/Excel.

- **URL**: https://apify.com/oriented\_wallpaper/email-verifier.md
- **Developed by:** [Flash Scrape](https://apify.com/oriented_wallpaper) (community)
- **Categories:** Lead generation, Automation, Developer tools
- **Stats:** 1 total users, 0 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.70 / 1,000 results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

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

## Bulk Email Verifier — verify email addresses in bulk with syntax, MX, disposable & role checks

Verify email addresses in bulk before your next cold-email campaign — **no API key, no subscription, and it never sends a single email**. Paste a list, get back a clear `deliverable` / `risky` / `undeliverable` status, a reason code, and a 0–100 deliverability score for every address, at **$1 per 1,000 verified emails**. Built for list hygiene: cut bounces, protect your sender reputation, and stop paying to email dead inboxes.

### What does it do?

For every email address in your list, the actor runs a fast, read-only verification pipeline:

- **Syntax validation** — RFC-style format check (length limits, local part, domain shape)
- **MX record lookup** — resolves the domain's mail servers over DNS-over-HTTPS (Google and Cloudflare resolvers), so it works from any network without port-25 access
- **Disposable domain detection** — flags temporary inboxes (mailinator, yopmail, guerrillamail, temp-mail and ~70 other domains)
- **Role account detection** — flags generic mailboxes like `info@`, `sales@`, `support@`, `noreply@`, `admin@` that convert poorly and bounce often
- **Free webmail detection** — labels gmail, outlook, yahoo, icloud, proton and other consumer providers so you can separate B2B from personal addresses
- **Normalization + deduping** — trims, lowercases, and (optionally) drops case-insensitive duplicates before verifying

Input is flexible: an array of strings, one address per line, or a single comma/space/newline-separated blob. Verification runs in parallel (configurable concurrency) with per-domain MX caching, so large lists finish quickly.

### Use cases

- **Cold outreach list cleaning** — run every scraped or purchased list through the verifier and keep only `deliverable` rows; bounces above ~2–3% get your domain flagged by Google and Microsoft.
- **Sales prospecting pipelines** — chain it after a lead scraper so every contact you hand to sales already has a verified, scored email.
- **Lead-gen agencies** — deliver client lists with a `status` and `score` column attached; verified lists command higher prices than raw scrapes.
- **CRM hygiene** — export your CRM's email column quarterly, verify it, and archive contacts whose domains no longer accept mail.
- **Form-signup filtering** — batch-check new signups and quarantine disposable domains before they hit your product analytics or drip campaigns.

### Input

| Field | Type | Default | Description |
|---|---|---|---|
| `emails` | array | *(required)* | List of email addresses to verify. You can paste them one per line, or pass an array. Also accepts a single comma/space/newline-separated string. |
| `concurrency` | integer | `20` | How many emails to verify in parallel (1–100). |
| `dedupe` | boolean | `true` | Drop duplicate addresses (case-insensitive) before verifying. |
| `includeInvalid` | boolean | `true` | Keep malformed addresses in the results (flagged undeliverable) instead of dropping them. |

Example input:

```json
{
  "emails": ["john@apify.com", "info@stripe.com", "noreply@gmail.com", "test@mailinator.com"],
  "concurrency": 20,
  "dedupe": true,
  "includeInvalid": true
}
````

Only `emails` is required.

### Output

One dataset row per verified address. Export to CSV, JSON, or Excel, or pull results via the Apify API.

```json
{
  "email": "John@Apify.com",
  "normalized": "john@apify.com",
  "status": "deliverable",
  "score": 75,
  "reason": "mx_valid",
  "syntax_valid": true,
  "domain": "apify.com",
  "is_free": false,
  "is_role": false,
  "is_disposable": false,
  "mx_found": true,
  "mx_host": "aspmx.l.google.com"
}
```

Status and score map to a fixed, transparent rubric:

| status | reason | score | meaning |
|---|---|---|---|
| `deliverable` | `mx_valid` | 75 | Valid syntax, domain has working mail servers, no risk flags |
| `risky` | `role_account` | 55 | Generic mailbox (`info@`, `sales@`, ...) — deliverable but low-value for outreach |
| `risky` | `disposable` | 15 | Temporary/throwaway domain |
| `undeliverable` | `no_mx_record` | 5 | Domain has no mail servers — mail cannot be delivered |
| `undeliverable` | `invalid_syntax` | 0 | Malformed address |

### Pricing

This actor uses **Apify pay-per-event pricing**: a `result` event is charged for each verified email in the dataset — **$1 per 1,000 verified emails** at the base tier. No subscription, no minimums, and no charge for runs that produce nothing. A **free Apify plan is enough to try it** — the platform's free monthly credit covers thousands of verifications, so you can clean a real list before paying anything.

### Tips & FAQ

#### Does it do a full SMTP handshake with the mail server?

No — and the README won't pretend otherwise. This verifier checks **syntax and MX/DNS only** (plus disposable/role/free classification). It confirms the *domain* accepts mail, not that the specific *mailbox* exists. That's why a clean pass caps at a score of 75, not 100. The upside: it's read-only, sends nothing, needs no proxies or port 25, and never risks your IP reputation. For high-stakes sends, treat `deliverable` as "safe to include", and let your email tool's soft-bounce handling catch the remaining mailbox-level misses.

#### Can a `deliverable` email still bounce?

Yes, occasionally. A domain can have valid MX records while the individual mailbox is full, disabled, or never existed (catch-all domains are the usual culprit). MX-level verification typically removes the large majority of bounces from a scraped list, but it can't guarantee zero.

#### Why are role accounts marked `risky` rather than `undeliverable`?

`info@` and `sales@` mailboxes usually work — they're flagged because they're shared inboxes with low reply rates, and some ESPs penalize campaigns heavy on role addresses. Filter them out with the `is_role` column if your tooling dislikes them, or keep them for local-business outreach where they're often the only address available.

#### How big a list can I verify in one run?

There's no hard input cap. Verification is parallel (up to `concurrency: 100`) and MX lookups are cached per domain, so lists that share domains verify especially fast. For very large jobs, splitting into runs of a few tens of thousands keeps datasets easy to export.

#### What happens to malformed addresses?

With `includeInvalid: true` (the default) they stay in the output flagged `undeliverable / invalid_syntax` with a score of 0 — useful for auditing what was wrong with a source list. Set it to `false` to drop them silently. Note that every row pushed to the dataset is a charged result.

#### Does it need proxies or an API key?

No. MX resolution goes over DNS-over-HTTPS to Google and Cloudflare, which works from any IP, including datacenter IPs, with nothing to configure.

### Related actors

- [Email Pattern Finder](https://apify.com/oriented_wallpaper/email-pattern-finder) — discover a company's email format when you have names but no addresses, then verify the guesses here
- [Hotel & Host Leads Scraper](https://apify.com/oriented_wallpaper/hotel-host-leads-scraper) — accommodation owner leads with emails worth verifying before outreach
- [Restaurant Leads Scraper](https://apify.com/oriented_wallpaper/restaurant-leads-scraper) — restaurant leads by city and tech stack, a natural upstream source for this verifier

Found a bug or need a feature? Open an issue on the actor's **Issues tab** — typical response within 1 business day.

# Actor input Schema

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

List of email addresses to verify. You can paste them one per line, or pass an array. Also accepts a single comma/space/newline-separated string.

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

How many emails to verify in parallel.

## `dedupe` (type: `boolean`):

Drop duplicate addresses (case-insensitive) before verifying.

## `includeInvalid` (type: `boolean`):

Keep malformed addresses in the results (flagged undeliverable) instead of dropping them.

## Actor input object example

```json
{
  "emails": [
    "john@apify.com",
    "info@stripe.com",
    "noreply@gmail.com",
    "test@mailinator.com"
  ],
  "concurrency": 20,
  "dedupe": true,
  "includeInvalid": true
}
```

# Actor output Schema

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

No description

# 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": [
        "john@apify.com",
        "info@stripe.com",
        "noreply@gmail.com",
        "test@mailinator.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("oriented_wallpaper/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": [
        "john@apify.com",
        "info@stripe.com",
        "noreply@gmail.com",
        "test@mailinator.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("oriented_wallpaper/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": [
    "john@apify.com",
    "info@stripe.com",
    "noreply@gmail.com",
    "test@mailinator.com"
  ]
}' |
apify call oriented_wallpaper/email-verifier --silent --output-dataset

```

## MCP server setup

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

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "Bulk Email Verifier - MX, Syntax & Deliverability Score",
        "description": "Verify and clean email lists with no API key, without sending any email. Checks syntax, resolves MX (DNS-over-HTTPS), flags disposable & role accounts, detects free webmail, and scores deliverability 0-100 (deliverable / risky / undeliverable). Read-only. Export CSV/JSON/Excel.",
        "version": "0.1",
        "x-build-id": "mPVQUAdD3g2hUFv8Q"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/oriented_wallpaper~email-verifier/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-oriented_wallpaper-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": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/oriented_wallpaper~email-verifier/runs": {
            "post": {
                "operationId": "runs-sync-oriented_wallpaper-email-verifier",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/oriented_wallpaper~email-verifier/run-sync": {
            "post": {
                "operationId": "run-sync-oriented_wallpaper-email-verifier",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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. You can paste them one per line, or pass an array. Also accepts a single comma/space/newline-separated string.",
                        "items": {
                            "type": "string"
                        }
                    },
                    "concurrency": {
                        "title": "Concurrency",
                        "minimum": 1,
                        "maximum": 100,
                        "type": "integer",
                        "description": "How many emails to verify in parallel.",
                        "default": 20
                    },
                    "dedupe": {
                        "title": "Remove duplicates",
                        "type": "boolean",
                        "description": "Drop duplicate addresses (case-insensitive) before verifying.",
                        "default": true
                    },
                    "includeInvalid": {
                        "title": "Keep invalid-syntax emails in output",
                        "type": "boolean",
                        "description": "Keep malformed addresses in the results (flagged undeliverable) instead of dropping them.",
                        "default": true
                    }
                }
            },
            "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
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```