How to avoid botheration in Mail Boxes.
The success with Yosemite Mail depends on quitting this app first before closing down your machine. You can retain the
3 ticks and remember to open your browser before trying to click on the Mail icon. If you do not do this, mail will fail to
talk to your ISP. In essence it has not got it's own "self-starter" to the net.
MacBook Pro, OS X Yosemite (10.10), Early 2011 13" model.