Contact Widget bugs / improvements

Hi, whens ending via Contact Widget, it sets the sender as:

<email@email.com <email@email.com>

ie, with an extra < at the start. In fact ,as there is no name, it could just be "email@email.com" really, no need for < > at all

Could I also suggest that there could be an option to remove the form, once submitted, so you just see the confirmation message? It would make it more obvious that it has been sent.

Thanks