If I find legitimate/”no-junk” mails between dozens of junk mails in my Junk folder, I can, for example, add the sender to the “Save sender list” so that it will not be forwarded to the Junk folder the next time. But in some cases also redirects legitimate messages to my Junk folder, and this force me to scan my Junk folder on legitimate messages every few days (default retention policy of let Junk items expire in 10 days). In most cases redirects all spam to my Junk folder, which is good. I use Microsoft for my private mail for many years now, and over the years I receive more and more spam.
UPDATE : A more advance flow is described in this new blog.
