>The cost to me of not hearing from Amazon is virtually zero. The cost to Amazon of not being able to communicate with all its customers that use gmail is huge.

>The cost to me of not hearing from Amazon is virtually zero. The cost to Amazon of not being able to communicate with all its customers that use gmail is huge. It's an Amazon problem, not a customer problem. And... this is exactly the point. If the filtering company works for the end user, and the end-user doesn't want the mail (or at least doesn't care if it doesn't get delivered) - then the filtering company should block it. My point here is that you don't have a fundamental right to my attention. If I'm paying someone to sort my messages for me, and they throw out a message that is important to you, but that I don't really want to see... as far as I am concerned, the filtering company has done it's job. (obviously, if I want that email, it's another matter entirely - see my other response.)