You could do it by setting up the action on your form to be a mailto, like this:
<form action="mailto:firstname.lastname@example.org" method="post" enctype="text/plain" >
Name:<input type="text" name="tName">
Email:<input type="text" name="Email">
<input type="submit" name="submit" value="Submit">
This will invoke the user's email client to send the email.
You also could use a cgi script, such as a formmail script to process the result.
You could also get another hosting service that will allow PHP.