You can view which users on your email list are no longer receiving your emails, whether their emails "bounced" or if they unsubscribed from your list. You can also export the list of users in a CSV file.
To view which users unsubscribed from your email list, navigate to the Email app in Marketing 360®:
You can select Export List on the top-right corner of the page to download the list of users in a CSV file. The CSV will include user's the email addresses, the reason for being on the suppression list, and the date that each user was added to the suppression list.