Email server and APP -- 2

Email client simple website and android messaging APP We are in need of a solution for a email service for both web browser and messenger app. Must include a logo icon for app. The app must have the ability to run advertising similar to the "email app for any email" by Craig park (see google playstore), with our adsense pub Id leaving room in the footer of each inbox email for our own direct sponsored ad signature. Like outlook on the web in the footer (hotmail). Our focus is for our own domain for mail server and should be automatically added into the app upon user sign ups however, it can leave room for users to add other optional email accounts outside of ours. It will launch as a free service. C-l-o-n-e will do the cause also without violating another ones copyright. Truckers.EMAIL. Logo should represent truck and mail. We have shared hosting at hostgator, or we welcome your recommended advise for a start up email server that has room to expand in the future. We are not professional however we are old time html skillful and somehwat php . We have some knowledge of MySQL .