Throttle's Safari extension generates unique email addresses for you to use all over the web, instead of your real email address.
All the messages you receive at these unique addresses show up instantly in the app in beautiful Reading List and What's New tabs.
When you hit Revoke Access, the unique email address Throttle gave to that sender is shut down. It's instantaneous. No more 'unsubscribe'.
Use the app to categorize your senders and set up custom daily & weekly email digests of the newsletters and notifications you've received.