This morning I checked my mail. Only two new messages, on of them marked as spam. Upon a second look, this mail was sent by an Apple e-mail address. The mail program shipped by Apple categorized this message from the vendor's domain as spam. Note that I did not go out of my way before to train the filter very much. It seems that the spam filter does not use a whitelist for Apple's own domain. This contributes somehow to the reputation that Apple is more on the side of the consumers, while Microsoft, if pressed, tends to lean to big corporations. Not that I buy into this image, but this behaviour definitely supports it.
Apple marks their own mails as spam. Imagine.