I am just getting to grips with Ubuntu, for the 3rd time in the same years

It seems spamassassin is the default spam filter. I have been looking for reviews about it without success. I find it strange I cannot find reviews, after all spamassasin has been around a long time.

Just because something is the default does not mean it is the best. My question is, is there any other spam filter as good or better and easier to use?

Thanks Greg