I believe that you should choose the first that's expeditor and then choose finish by... and add @domain he wants.I'm not quite sure what you mean by this, '@domain he wants' is that the domain for each contact he wants to permit? does that mean you have to get to the Settings screen to add every Contact? there isn't a 'Not Junk' type button?
That's easy to set it up. Just go on mail option or parameters and create a filter with what you want. That's all
Thanks