Well, I can't speak for Windoze but on my Mac I use a mail client that does exactly that. The Mac Mail app has itself a junk filter but my online mail system is MacAce which has a system that you train. There is a range of choices including tagging as junk mail and blocking. It doesn't throw anything away but it puts all the Viagra type stuff in a folder on its server and every few days sends me an email with all the items listed. I simply scan them and put the lot into trash. Occasionally something that I want does sneak in there and so I send it to my inbox.
Last edited by Sunnyjohn; 26th January 2014 at 10:27.
Reason: Caps