The unsubscribe buttons on those emails mostly work, by law. My life improved a lot when I started taking the ten seconds to unsubscribe from everything, vs. just deleting.
I often find myself constantly deleting/ignoring these emails instead of just hitting "unsubscribe". It's so weird how our human laziness works because I swear not many people unsubscribe from emails even though it is typically very easy. It is satisfying when I go in and unsubscribe to a bunch of junk.
You can use the unsubscribe link at the bottom of each email. I have done this probably hundreds of times over the past 5 years and it has worked as expected with no undesirable side effects.
