Unsubscribe Manager gives your recipients more control over the types of emails they want to receive by letting them opt out of messages from a certain type of email.
Learn more in the Unsubscribe Manager User Guide, or check out the following API resources:
Suppression Group allow you to segment your email by a grouping which is most often defined by the types of email. Example: Receipts, Deals emails, and notification.
Suppressions Allow you to manually add or retrieve specific emails that are in your suppression groups.
Global Suppressions Allows you to keep all emails from going to a specific contact