If you have admin privileges you can re-subscribe an unsunbscribed subscriber. This should only be used for testing unsubscribe functionality.

1. Go to your Subscribers Manager

   This is located here: Subscribers Manager

2. Find the Subscriber List containing the Subscriber you wish to resubscribe

   You can use the Campaign drop down to navigate to each of your Campaigns, or Unassigned (those that have not been assigned to a specific Campaign), or choose "Show All". Alternatively you can use the Search input to search by Subscriber List name.

3. Click the List Name

   Once you've found the list containing the subscriber you want to edit, click the List name. This is a link to a list of all subscribers within a particular list.

4. Locate the Subscriber

   Use the search input to type in the email address or name of the subscriber you're looking for.

5. Click the "Tools" button (a wrench icon)

   This will reveal a navigation drop down.

6. Click the Re-subscribe link

   This will completely resubscribe the user.