The page describes using a send mail setup. Usually this a script that will send the emails for you if you sent it the correctly formatted info. This is different than how UE works. Using UE will create a page for you that is like your sendmail page. It creates the page that will send the email message and the code that will access this page to have the message sent.
You need to have access to a regular SMTP server and have the ability to use the php mail() function call in your scripts. You will need to contact your host and get the specifics about this. If you are able to use the php mail call in your pages then try to obtain a sample script with the php mail call in it. This should tell us the info we need to know.
