Find the person you want to unblock and click to the right of their name. A confirmation box will appear; click Unblock to finalize. Method 2: Directly From an Email

Find the email address or domain you want to unblock.

in your browser and log into your account.

The desktop version of Gmail provides the most comprehensive way to manage your blocked list. Method 1: Using the Blocked Addresses List

Accidentally blocked a contact or decided to let someone back into your inbox? Gmail makes it easy to reverse the action.

Use this method if you still have an email from the person in your "Trash" or "All Mail" folders, or if you haven't deleted their previous correspondence.