how to stop messages going from inbox to trash when messages removed from host server

I am trying out the free version of eMclient as an alternative to Windows Live Mail but don’t like some of the things that eMclient does automatically . One of these is that when I delete messages on the host server they then get deleted (sent to trash) automatically whereas I want them to stay in my inbox. I can’t see any setting that could change this. Possibly the full version has more options. Can someone please help.