You don't need a proxy for http. Just edit the Listen line in
/etc/httpd/conf/httpd.conf:
Code:
Listen 0.0.0.0:8080
Although I would use a different port number than 8080, because that one is so common they probably listen on it too.
You don't need to do anything special to get your email, but if you want to setup a mail server you would probably have to do something similar. But I would think twice before setting up a mail server.