I wish my email client would do this for me. I know there's things like unroll.me but AFAIK they can't tell how engaged with particular mailing lists I am. Or

I wish my email client would do this for me. I know there's things like unroll.me but AFAIK they can't tell how engaged with particular mailing lists I am. Or even just a "swipe to unsubscribe" feature in Google Inbox would be nice.