---
canonical_url: "https://docs.composio.dev/toolkits/bulk_email_checker"
markdown_url: "https://docs.composio.dev/toolkits/bulk_email_checker.md"
product: "platform"
version: null
last_updated: null
---

# Bulk Email Checker

Bulk Email Checker verifies email addresses in real time and reports deliverability, mailbox, domain, risk, and mail-server details.

- **Category:** email
- **Auth:** API_KEY
- **Composio-managed OAuth available?** N/A
- **Tools:** 1
- **Triggers:** 0
- **Slug:** `BULK_EMAIL_CHECKER`
- **Version:** 00000000_00

## Tools

### Verify Email

**Slug:** `BULK_EMAIL_CHECKER_VERIFY_EMAIL`

Verify one email address and return its deliverability result, reason, suggested correction, risk flags, mail-server enrichment, and remaining account quota. A passed or failed check may consume one credit, and failed addresses may be added to the account blacklist.

#### Input Parameters

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `email` | string | Yes | Email address to verify. |
| `label` | string | No | Optional tracking label for failed-address blacklist entries. The provider uses `Real-time API` when omitted. |

#### Output

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `data` | string | Yes | Data from the action execution |
| `error` | string | No | Error if any occurred during the execution of the action |
| `successful` | boolean | Yes | Whether or not the action execution was successful or not |