So the email spam solution? Doesn't that come with its own list of problems? Also, stupid question from someone not that familiar with DDoS, can't you flood th

So the email spam solution? Doesn't that come with its own list of problems? Also, stupid question from someone not that familiar with DDoS, can't you flood the target with requests even if the source address will be rejected? Or even if the IP packet has a falsified source address?