Sending a subscribe confirmation email programmatically

Hi!
I add users to the mailing list programmatically using this code :

$list_id = 2;		
$contact_data = array(
  'first_name' => $user_firstname,
  'last_name'  => $user_lastname,
  'email'      => $user_email,
  'source'     => 'wp',
  'status'     => 'verified',
  'hash'       => ES_Common::generate_guid(),
  'created_at' => ig_get_current_date_time(),
  'wp_user_id' => $user_id, // Associated WordPress user id if present.
);
do_action( 'ig_es_add_contact', $contact_data, $list_id );

Is it possible for such users to send a subscribe confirmation email automatically ?