Since the real validation should, and is happening server-side, I would like jQuery only to validate if required fields are not empty. So I've got these defaults:

```
  jQuery.validator.setDefaults({ 
    rules: {
      required: true,
      email: false // Experimental, does nothing?
    }
  });

```

The problem is that jQuery validation plugin still performs other checks (like email syntax), which differ from server-side implementations. How to turn them off? 

As far as I got their [documentation](http://jqueryvalidation.org/documentation/) setting properties like: `rules` > `email` or `rules` > `url` to **false** should do the trick... But apparently it doesn't?