There are a couple of ways of doing this.
It depends on what you have on your server.

If you can run .asp then you may be able to use the jmail or Cdonts components (if installed, check with your hosting company). If not then .cgi or .php is fine.

It's not as complicated as it at first seems, though can seem confusing first time round.

If you'd like some direct help, please feel free to drop us a line.