I'm not sure that this is really a good idea. If you really want to do this then how you'd do this depends on your setup.

If you don't have any control over the actual web server, then I would a an embedded 1 bit image tag in the static page, and have that img src be a link to your CGI script. The CGI script will the output the actual image (1x1 transparent gif, for example), and uses the referer to know what page it was called from and then sends the email.

Michael