This does not work for Usenet but for Mail, with most mail services, there is a method that works very well, and has a bunch of advantages as well.
WEB MAIL
That is instead of download the mail, including the malware that is in the spams (And occasionally the "Trusted" mails) you let Yahoo or Google or Microsoft deal with the malware and leave the mail on the host site.
Then using any computer.. your desktop, laptop, IOS, Android, Phone/tablet, A computer at the local library.. Even (in one case) a computer at Enterprise (I needed a copy of a utility bill.. Logged in and grabbed a phone bill) .....
You have full access to your E-mail
Accidently drop and run over the computer.. NOTHING IS LOST.
And what's more.. The malware.. Well it stays on the HOST (Yahoo/G-mail/Microsoft) is caught by THEIR virus scanners and never delivered. If you try to download it (I did once, just to see what would happen)( they throw up so many ARE YOU SURE YOU WANT TO DO THIS messages that if you are like me you will give up.. I did.. and delted the thing un-downloaded.