I already solved it with this filter:
function wpsk_comment_moderation_recipients( $emails, $comment_id ) {
// Adding any email
$emails = array( '[email protected]' );
return $emails;
}
add_filter( 'comment_moderation_recipients', 'wpsk_comment_moderation_recipients', 11, 2 );
add_filter( 'comment_notification_recipients', 'wpsk_comment_moderation_recipients', 11, 2 );