Thank you for your reply.
I already knew that. I also managed to find a way sending the mail to an email-adress which was input in the form itsself using: {set-block scope=root variable=$email_receiver}{$collection.attributes[4].data_text}{/set-block}
But what i really like to do, is send the email twice. To the visitor who filled out the form, like:
Dear Visitor, we received your request with the following data: ... We'll be contacting you soon.
And to the owner of the website, like: There was a new reequest on your homepage with the following data: ...
