You can't. The form is not sent from the visitor's email but is
processed through your form. You can ask for an email address as a
required field in your form. Even that will not guarantee the email
address filled in is truthful or correct.
James Morrison wrote:
> When sending a form created from Frontpage, the form is sent by the server
> with the default address: (E-Mail Removed).
>
> How can you modify the "anonymous" to reflect the sender's email address
> instead of the servers default address?
>