10.9.5 mac mail freezes up
I recently updated my mid-2012 Macbook Air to OSX 10.9.5 and when I open my Mac Mail app, no new mail comes in and the app quickly freezes. It also keeps me from accessing the dock. I have to command+option+esc and force quit in order to resume normal use of my computer. Has this happened to anybody else? Can anybody offer a solution? If I don't solve this soon I will resort to restoring my computer from the last update prior to my last OSX upgrade.
OS X Mountain Lion (10.8)