There are many ways to do this. You can use the FrontPage email bot, ASPEmail, CDONTS or a CGI script that support SMTP servers. The servers do not support Sendmail.
Here is an example of a Cold Fusion mailto Script.
Save this file as emailForm1.html. Then, create a new page named emailForm2.cfm (make sure its .cfm and not .html otherwise it will not work). Paste the following code into that page:
You will need to replace the information in the CFMAIL tag to match your own (ie - mail.yourdomain.com , where yourdomain.com is your domain)
Make sure there are no spaces or dashes in your form field names.