A little off topic but for anyone using Thunderbird, I highly recommend BetterUnsubscribe[1] to help combat spam. Since installing I've basically eliminated marketing emails from my inbox. I've used tools like unroll.me in the past but I found that a one-time review doesn't really help much since every signup and every form entry always risks you getting more marketing emails and having to go to another service all the time creates alot of friction. That extension lets you unsubscribe the moment you see a marketing email hit your inbox.