You can use the CGI form mailer depending on the type of hosting account you have. For more information, see What type of hosting account do I have?
cgi directory of your hosting account is reserved for cgi scripts. Do not upload the HTML file that contains your Web form to the cgi directory.
Remember to specify the email address you want to use with the form-mailer in your account manager. For more information, see Specifying an Email Address for the CGI Form-Mailer.
Note: TIP: Our form-mailer script sorts the names of your form items alphabetically when it composes the email message. The order of precedence is: uppercase letters, lowercase letters, numbers.
Here's an example:
If you are using a secondary domain name (Manage hosting account domains), your redirect should point to:
/folder is the folder on your hosting account you use for the site and
thankyou.html is the file you want to redirect visitors to.
For information on reinstalling your default scripts, see Reinstalling the Default Scripts Directory on Linux Shared Hosting.