Email bounces on the rise

I read a lot of Clickz and I definitely see the results of this article about "The Rise of Aggressive Bounce Rates". It's a very short article but we see this happening quite a bit. http://www.clickz.com/showPage.html?page=3624656

We constantly have to resend our Toll Free Manual to customers, partially because some just overlook or lose it, but many just never seem to see it.

There really is no answer. Email just isn't any where as reliable as it used to be. But at least I feel better that it's not just a problem with us, but it's a growing problem for everyone. I currently get 4 to 5 thousand spams per day, but have several excellent filters and don't miss much or bother with very much spam any more. But it's making everyone raise the bar and it's costing their customers some very legitimate emails.