Ultimate Member Private Messaging - Email recipients everytime there's a new message in chat

Ultimate Member Private Messaging - Email recipients everytime there's a new message in chat

/**
 * Author: Champ
 * Website: www.champ.ninja
 */
function um_custom_messaging_user_got_message($to, $from, $conversation_id ){

   if ( ! UM()->Messaging_API()->api()->enabled_email( $to, '_enable_reminder_pm' ) ) {
		return;
	}
  remove_action( 'um_after_existing_conversation', 'um_messaging_user_got_message', 20, 3 ); // Remove the original email notification with timestamp

// send a mail notification
	um_fetch_user( $to );
	$recipient_e = um_user('user_email');
	$recipient = um_user('display_name');
	$message_history = add_query_arg('profiletab', 'messages', um_user_profile_url() );

	// who sends the message
	um_fetch_user( $from );
	$sender = um_user('display_name');

	UM()->mail()->send( $recipient_e, 'new_message', array(
		'plain_text' => 1,
		'path' => um_messaging_path . 'templates/email/',
		'tags' => array(
			'{recipient}',
			'{message_history}',
			'{sender}'
		),
		'tags_replace' => array(
			$recipient,
			$message_history,
			$sender
		)
	) );
}
add_action( 'um_after_existing_conversation', 'um_custom_messaging_user_got_message', 19, 3 );