Domain hosting with WordPress – setup email?

So I wanted to start a blog. I went to ww.wp.xz.cn and paid for the domain I wanted and setup a free wordpress blog.
Now I want to setup an email account ([email protected]). Can I do this with ww.wp.xz.cn being my domain holder? Or do I have to get an email host and point my records there?
Does it change anything if I get the $99 pro package with WordPress?