How to delete a contact in yahoo address book?

Need help on how to delete a contact from address book on yahoo?

• A few days ago i got a random add on yahoo and i deleted him, but when i try deleting him from the address book it says; The last address book operation did not succeed due to a server error. (Error code: -40402) I tried deleting him several times but the same thing keeps popping up everytime i try. It's really annoying because i don't even know this person so i would like anyone who knows how to fix this to help asap! Thanks.

• Answer:

  Set up your Spam Protection. 1. Click on the "Options", Mail Options link in the upper right of your yahoo mail page. 2. Click on "Spam" in the left navigation bar. 3. Fill out the form and click the "Save Changes" link at the top left. Once you have this set up, each time you see spam or mail that you want to block, check the box next to it, go to the top of the email list and click the "Spam" button. Note: Every message you report trains your Spam Guard filters to work better for you. The messages you select in this way will be deleted and reported as spam. The senders of the messages will be added to your "Blocked Addresses" list.