How Can I Unblock an Email Address on Hotmail?
Hotmail is a free email service provided by Microsoft. One feature of Hotmail is that you can block the email addresses of people you don't want to receive messages from. If you accidentally blocked an email address or later decided that you want to receive email from a person you blocked, you can quickly unblock the email address.
Sign in to your Hotmail account using your email address and password.
Click the "Options" button from the menu at the top right of the screen and select "More options" from the dropdown menu.
Look for the "Junk e-mail" section of the "Options" menu that opens. Click the "Safe and blocked senders" option. You can view email addresses marked as safe and email addresses that you have blocked here.
Click "Blocked senders" to view a list of the blocked email addresses.
Select the email address you want to unblock from the list of blocked email addresses and then click "Remove from list." The email address you removed is now unblocked and you can receive email messages from this address.