Explain spam blockers to me, please

[LisaR]

I am not computer savvy. I have always gotten some spam emails but a few months ago, they increased significantly. I was getting a lot of the "I am going to wire you millions from Zimbabwe.........." type emails. I installed a spam blocker provided for free from Road Runner. Since installing it, I get at least 100 spam emails a day. I have had numerous days over the last month or two that I have received over 200 a day. Why?? I was getting maybe 10 or 20 a day before installing the blocker. Why would I now get so many more just because I have a spam blocker? Or, is it just a coincidence? Thanks!

Lisa