That's what I do today but what often happens is I just never check them. Also some newsletters contain events or occasional time sensitive bits so partial filter has proved a challenge there. Curious to hear if you've experienced either of these.
I used to also filter them out to a folder with no unread tag until I realized that I missed quite a few free ebooks that O'Reilly was offering. Since then I still have them in a folder but I go mark it read once a day to make sure I don't miss stuff like time-sensitive offers.
