I own a boat load of IK stuff and never receive any emails.
I must have opted out when I signed up for my account.
I too use the software forums here to get the down low on new products. Which is usually better because the person posting usually has the product and offers a review with the news also.
One company that I would actually like emails from is Cakewalk.
I have signed up for their emails about 12 times over the last few years and still get nothing.
And no they don't go to my spam. They just don't come.
About 2 years ago I did get one or two Cake-mails but they just stopped all of a sudden.
Again, I rely on the forums to find out about patches and whatnot.
Mike