My linux desktop. All this runs fine on a 300mhz machine running openvz with a sqlserver, a webserver, a mailserver, and a publicserver (The screenshot is from the public server)
Somehow I doubt that would remain true if any of those were used to a reasonable extent.
Probably, but all my email and some of my familys email goes through it, (Virus/Spam checking) and I get quite a bit of stock spam.
Which reminds me... Take a look at this image
Its the attachment (Dont worry... Its been virus scanned) from one of my latest spam emails. Notice how its animated? Before, they werent and didnt have the lines like captchas have. This leads me to think someone was successfully blocking them somewhere. I'm not really having much luck with spamassassin so far though. :-(