Certain incoming emails are a continuous annoyance, in Kmail how do I stop them?

[Shabakthanai]

I installed the bogofilter and thought it might provide a method to stop specific unwanted incoming emails.

I do not want things from Facebook or Ebay. Is there a filter method to have them deleted prior to downloading my incoming emails. I use and prefer Kmail for emails.
Thanks!

[Shabakthanai]

Thanks for the advice. I did not give sufficient time. In fact I am still perfecting the configuration settings and have noticed improvement.

I love the power within Kmail. If I can get my mind to be able to absorb the available features, I am sure it will handle any future desired function. Kubuntu has made things so easy for us, sometimes I talk before I look, so-to-speak. You guys are so thoughtful to keep us weak thinkers in line.

Have you given it time to learn?

And have you followed the install similar to this?
http://www.ghacks.net/2009/10/16/spa...ng-with-kmail/