I buy a lot of bundles, so I get a lot of game update emails. I don't mind dealing with them individually, but recently I've hit error messages when I try to unsubscribe from some of them.

I would really like a way to unsubscribe from the emails BEFORE I get one, but aside from that - I want the "unsubscribe" link in the email to work, because I can't find any way in the site or account settings to do that.

I'm calling this a "bug" because it seems to be "link not working as expected." It has worked in the past; it's not working now.

(I never mind "here's an update for my game" or even "I'm doing a print version on Kickstarter." But any emails that are "If you liked this game... I have a new one" or worse, "here's a link to my Patreon" get unsubbed immediately. I am happy to see updates for the game I bought; if I want more from the creator, I'll follow them.)

Followup note: I can unsubscribe to some emails. Others get me the error message. I have no idea what the difference is. I don't see any way to check what I've unsubscribed to.