How to view contacts that have unsubscribed from emails
You can easily find which contacts have unsubscribed from emails if they have chosen not to receive them.
Step 1:
Go to the Contacts tab and view Contacts. Select Filters.
Step 2:
Search for the filter "Unsubscribed".
Apply the filter by selecting "Email unsubscribed is equal to Yes".
The list of all contacts who have unsubscribed will appear in the list.