Hi i am new to mac as i have just bought a macbook. I was always on windows and now want to change. I am setting my newly mac and wanted to have another email app instead of the apple mail. I have downloaded polymail zip file, unzip it but have found polymail.app and macosx folder. I know only to install .dmg file but this one can't figured it out. Can anyone pls tell me how to install this one as i have told i am new to mac. Thanks for your support.