First of all I got a new iMac on Tuesday and I am in fits of joy with how it works and Yosemite OS,,,,so far. However, yesterday I synched Google mail to my Apple mail and suddenly got a torrent of mail that I had not even seen on my old Mac and that email client which was "Postbox". In any event I got 486 emails all of a sudden and was in the midst of deleting them when the Apple mail froze, Now it is ON at all times with no mail window showing and I cannot QUIT the client nor see its window in the Finder or any other place. It just sits in the Dock with the black dot under it and right click Ouit has no affect on it. It is probably something I did by deleting as fast as I did but, never-the-less I am without email. Looking for a fix. It shows in the top bar as it should but most of the dropdown menus are not active. The basics are that I cannot quit the email at all and don't want to go any further with the email without knowing what I;m doing. Everything else works perfectly.
I just saw that I posted this in the wrong topic. Move it to the applications topic if you will.