How do I keep an email from going into my bulk account?

I have a friend that emails me and gets filtered through my Yahoo! spamguard. I normally just delete all my bulk mail, so I missed several emails from this person. I don't want to have to go through my bulk mail every time. Is there a way to enter this adress on my Yahoo! mail so that it will not be sent into bulk?

How do I keep an email from going into my bulk account?
Put their email in your address book should help keep it in inbox.
Reply:you add them in your addressbook and/or select the mails in ur bulk folder and click on "not spam". this might work.