I believe Gmail already has this feature: https://www.mailjet.com/blog/deliverability/understanding-gm...

I have used the feature in Gmail, and do like it.

The vast majority of e-mail that I get which claims to have an unsubscribe process is actually spam. If you try to unsubscribe from it, all you've done is proven that your e-mail address is live and monitored, and so you now get your address resold to 100x more spammers.

So, I wouldn't recommend doing that sort of process unless you can be 100% certain that the message isn't actually spam, and you can properly unsubscribe from it.

I’ve started using Feedbin to subscribe to pretty much everything: RSS, Twitter, Mastodon, HN, YouTube, Reddit and, most relevantly in terms of this post, newsletters. It gives you a custom email address for sign up forms and then if you don’t want to receive the newsletter anymore you simply flick a toggle next to the newsletter or just remove it from your feed list, job done. Absolutely awesome. Using ReadKit as my reader across Mac, iPad and iOS. Getting way more quality content, wasting way less time surfing, no ads, no pop ups and no cookie notifications. Makes the internet an actual blissful experience rather than the hellscape it has now become. Highly recommend.

Looks cool! I remember when I started easyunsubscriber.com. Unsubscribe.com was a competitor and later unroll.me also came around. Both eventually were acquired, I stopped running easyunsubscriber when I couldn't monetize. I think all of these companies had trouble monetizing and had different plans, but eventually weren't able to and got acquired and put into a larger toolset or shut down.

Let me know if you want to chat. rcavezza [at] gmail.

It’s a good idea but I feel you’d have to gather users and notoriety with a more trusting general population before asking HN to open up their inbox to a brand new service.