The application (basically a shortcut that opens with no navigation bar for chrome) has a critical bug that is very annoying
When you do not maximize a window and make the window take up half the width of your desktop, when you re-open the zoho mail application it opens with the same size you left the window as last.
THE PROBLEM is that when you maximize the window from there, the application retains its original size, adding only a white padding to the right side. In other words, the window re-sizes but the application does not.