foreach($array1 as &$val1){  //Paso el array1 como referencia
    foreach ($array2 as $val2){
        if($val1['email']==$val2['email']){
            $val1['status']=$val2['status'];  //Agrego al array1 el status
        }
    }
}
unset($val1); //Se elimina la referencia
print_r($array1);