> ## Documentation Index
> Fetch the complete documentation index at: https://api.smartlead.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Send Warmup Unblock OTP

> Email a one-time password to a warmup-blocked email account so its warmup can be unblocked

<Note>
  The OTP is emailed to the account's own address (`from_email`). It is valid for 10 minutes and can be used once. Submit it with [Verify Warmup Unblock OTP](/api-reference/email-accounts/verify-warmup-unblock-otp).
</Note>

## Path Parameters

<ParamField path="account_id" type="number" required>
  Email account ID
</ParamField>

## Query Parameters

<ParamField query="api_key" type="string" required>
  Your SmartLead API key
</ParamField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST "https://server.smartlead.ai/api/v1/email-accounts/101/send-otp-email?api_key=YOUR_KEY"
  ```

  ```python Python theme={null}
  import requests

  response = requests.post(
      "https://server.smartlead.ai/api/v1/email-accounts/101/send-otp-email",
      params={"api_key": "YOUR_API_KEY"}
  )
  print(response.json())
  ```
</RequestExample>

## Response Example

<ResponseExample>
  ```json 200 theme={null}
  {
    "ok": true,
    "data": "OTP has been sent successfully."
  }
  ```

  ```json 500 - Account not found theme={null}
  {
    "message": "Invalid email account id!"
  }
  ```
</ResponseExample>