MailManager override "from" email
You can use hook_mail_alter to customize the From:

MODULE_NAME_mail_alter($key, &amp;$message, $params) {

  switch ($key) {
    case 'my_email_key':
      $message['headers']['From'] = 'My Email Name &lt;my_email@address.com&gt;';
      break;
  }
}