As an added functionality, team Admins can enable the ability to sync "Unsubscribes" with "Email Opt Out" in Salesforce. You can find this under the "Admin Settings" page.
NOTE: Contacts must have been Pushed to Tout for this feature to work. This feature will use Salesforce API calls.
Requirments
How It Works
This is how the contact will appear in Salesforce:
This is how it will appear in ToutApp: