I got that e-mail today and some other day. I don't click on the attachment since I'm afraid my computer will go bad. Luckily, I have Trend Micro Internet Security on my home computer since March 10 of this year. Especially if I rebuild my brother's computer and upgrade my grandpa's old IBM Aptiva, I might want to install either the Microsoft Security Essentials (Freeware - $0.00) or upgrade my Trend Micro to a 3-user subscription (for $20.00 more). For those who have a crappy Anti-Virus, like McAfee, Norton, or others, except for Microsoft Security Essentials, ESET Nod32 Anti-Virus, or Trend Micro, I would recommend you get the Trend Micro Internet Security Suite (approx. $29.99 MSRP + State Tax for a 1-user edition, $49.99 MSRP + State Tax for a 3-user edition, or $79.99 MSRP + State Tax for a 5-user edition). If you get something from USPS (United States Postal Service) or FDIC (Federal Deposit Insutance Corporation) with a tracking number, add the recipient's e-mail address to your blacklist (block this e-mail)* and delete the e-mails immediately since your computer will get infected, even Mac's and Linux OSes can still get infections.
*go to your ISP's e-mail help, or other e-mail client's help guide to block e-mails. For Hotmail/Windows Live Mail, check the box on the e-mail that's in the Junk mail folder (or Microsoft blocks those e-mails), click Sweep and click on Block From (adds the e-mail addresses to the blacklist) and click OK, and delete the e-mail(s) from your Delete folder.