禁用在联系表单中向发件人发送副本 Drupal 7

Question

我有一个静态网站，其中包含使用 drupal 7 开发的联系表格。当用户输入电子邮件地址、姓名、主题和文本时，副本会自动发送给发件人。如何在代码端禁用此功能？我在 drupal 的管理端找不到这个功能。

Answer 1

By default there is one checkbox called 'Send yourself a copy' is on contact form which is by default unchecked. As i can see it is not visible in attached screenshot. Maybe it hidden because of captcha.

Or else we can alter form using hook_form_alter on .module file and add following code.
if ($form['#form_id'] == 'contact_site_form') {
$form['copy']['#access'] = FALSE;
}