A common mistake people over 40 make is list too much experience. This simultaneously sparks ageism, raises the "overqualified" flag and creates concerns about your ability to scope out irrelevant info.

Try removing the graduation year and limiting the experience to the last 5 years or so - you'll get much more replies off "cold" channels.

That said, using cold applications being 40+ is generally a bad idea. You need to be actively working on your network and relying on people that know you're good in order to get the foot in the door.