I use the email in Mozilla ( http://www.mozilla.org ) It's a good emailer and guesses at junk mail very well. If it msses one, you just click on it as junk and it learns. It seems to work very well. I just love getting 25 emails come in and see the 20 junk ones end up in the bit bucket.
The mozilla web browser is also good as one can block pop ups and images from advertisements.