we now know that exploits like webbugs etc are used in html to confirm "visiting a site." well in html email adding a webbug that includes your email address is a way to confirm the email address is live and valid and worse yet, that the email has been read. Spamkiller actually does this not just for the mail you kill but even for mail it filters and you never read.

IE every message with a webbug returns a message to teh spammer that your account is live and that you read spam! You can not turn off this feature in either spamkiller 5.0 or 4.0. this is incredible!

use this product and you will be added to every spammer's list, not only as a live email address, but as someone who opens their spam mail (even if you don't!)

My subscription ran out on 4.0 so I went an purchased 5.0.
After installation what I learned is this: they completely redesigned and destroyed a perfectly excellent product,and it won't run smoothly unless you are running a Pentium 4 machine. As far as I'm concerned this was the only product I liked from their product line and now they've just killed it.

I recently downloaded the 30 day trial from McAfee for SpamKiller. I had a few minor problems in the beginning getting my email list set up so I wasn't filtering out family and friends. After reading the online help and following the directions (I use XP and full blown Outlook) I was able to filter out spam quite effectively. I have had no problems with the SpamKiller locking up my system or keeping me from getting email. I can understand the frustrations some previous posters have had but I have not had any major problems.

I would recommend this product for most people but please remember you may need to be patient when installing and setting it up for the first time