Android email exchange server

I have an issue on my s4 android phone following linking my email's through exchange server. I had to add our domain,server setting etc.
I finally managed to get the email account to authorise and send and receive but as soon as i open outlook on my computer the emails on my s4 disappear.
So when out an about i know longer have any details of my previous emails.

I would presume it is a setting on the s4 as the blackberry they stay on the phone as required.

Also is there anyway to show my email folder as they would within outlook?
Any help appreciated.