how to block an email address an yahoo

1
How to Block an Email Address on Yahoo!
2
Sign in to your Yahoo! Account. Type in your
Yahoo! Username and password.
Steps-1
3
Click on Mail. This will open your Yahoo! Mail
account.
steps-2
4
Click the gear icon in the top right
corner. Click Settings in the menu that appears.
steps-3
5
Select Blocked Addresses. Type in the email
address you would like to block and click the
Block button. You can block up to 500 email
addresses on one account. All messages received
from the sender will be immediately deleted, and
wont bounce back as un-deliverable.You can block
entire domains by entering the domain address
into the filter. This is useful if you continue
to receive spam from different usernames under
the same domain. The domain is the address after
the _at_ symbol.1To remove an address from the
blocked list, highlight it and click the Remove
button.
steps-4