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

# Invalid Bounce

Invalid Bounce verifies email addresses through a bulk verification API.

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

## Tools

### Start Bulk Email Verification

**Slug:** `INVALID_BOUNCE_START_BULK_VERIFICATION`

Irreversibly start an asynchronous email-verification job using the connected account's verification quota. This action returns job acceptance and an ID, not per-email results.

#### Input Parameters

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `emails` | array | Yes | Non-empty list of email addresses to verify. The number of addresses must not exceed the connected account's remaining verification quota. |

#### 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 |