library/Garp/Util/SimpleMail.php
public function setTo($to) {
        if (!is_array($to)) {
            $to = array($to, '');
        }
        $this->_params['to'] = $to;
        return $this;
    }
public function setTo($to) {
        if (!is_array($to)) {
            $to = array($to, '');
        }
        $this->_params['to'] = $to;
        return $this;
    }
public function setTo ( $ to ) { if ( ! is_array ( $ to ) ) { $ to = array ( $ to , '' ) ; } $ this -> _params [ 'to' ] = $ to ; return $ this ; }
Set to address

@param Mixed $to
@return $this
Set to address