I have received a message about 2011 scheduled maintenance and they want my account information? Password etc.?

password, date of birth, user name. its from yahoo member service, and signed from help desk. I want to know if this is for real, or someone trying to get my personal information?|||This is a known phishing scam attempting to get you to give them all your personal info. It's not from Yahoo, just delete it and ignore it. Good luck and be careful.|||It's fake.|||anyone asks for personal info. is a fraud, delete now.