In Outlook, blocked senders are moved to the "Junk Email" folder. Block and unblock email addresses in Yahoo Mail
Go to and sign in with your Hotmail email address and password.
To unblock someone on Hotmail (now known as Outlook.com), follow these steps:
If you can still find an email from the sender in your Spam folder, open it and click the "Unblock sender" button located in the gray box at the top of the message. From Settings (Centralized List): Open Gmail on a desktop browser.