In Leopard, my mail downloads were stored in my library>mail dowloads. Since I've upgraded to Mountain Lion, I don't know where my mail downloads are going. Any ideas?
Have you searched in ~/Library? ~/Library is hidden by default in OS X Lion and Mountain Lion, so open a Finder window, hold the Option (Alt) key and select the Go menu (on the menu bar) > Library. Then, you should see the Mail Downloads folder
have you tried looking in your downloads folder? In mail try Command+Comma, Go to general in the top left and then towards the bottom 3/4 of that window it should say what your downloads folder is.
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