Norton *might* protect you from opening the attachments (which are the
virus) - I say "might" because that always depends on whether or not your
virus signature downloads are up to date and the virus is not so brand new
that Norton doesn't have a signature to detect it (sometimes the Antivirus
companies are 24-48 hours behind the race)
But, the AV products typically do not prevent the email from reaching you -
to do that you have to look for proxy mail servers and similar products that
let you (or automatically) examine mail on your email server.
Once my AV program handles the virus, I don't really worry to much about
receiving more of them (although this latest round of trash DOES waste some
bandwidth, but I am on broadband, so 146KB a pop isn't that serious).
HTH
