mail addresses getting spammed on windows machines

Something that is really nagging…it seems that windows machines put any incoming or mail address into a spam folder??? Anybody else smarting from this? If so, can we bring a class-action lawsuit against microsoft? I don’t think anything violent would be appropriate…and would eliminate RW from the long list for the Nobel prize in peace. Am wondering about getting a address, but this would be giving in to the scoundrels?? Any opinions?