I received multiple unwanted emails from each of several sites.?

Thinker: I received multiple unwanted emails from each of several sites.?
Is there a way that I can prevent emails coming from sites? LIke several sites have sent many related consecutive emails “how to do such and such in the stock market”? etc.

Answers and Views:

Answer by jonnie66
spam them, or request ggogle/yahoo etc. to block them in the future