There are a few different ways to get a hold of Raven, unfortunately as busy as Raven is, she cannot answer all her fanmail.

A few websites to try: Offical Site | Hollywood Records | Disney Channel

Fan address: Raven-Symone
                   c /o Disney Channel
                   3800 w. Alameda Ave.
                   Burbank, CA 91505
                   United States

                   Raven-Symone
                   ATT: Hollywood Records
                   3800 w. Alameda Ave.
                   Burbank, CA 91505
                   United States

Contact the staff at Raven Source

Derrick is 21 years old and became a fan of Raven in 2003. He created the site on February 18, 2004
(making it one of the longest running Raven websites online). It has become a number one stop for everything Raven and has become the most popular search engine website on Raven. It even gained the attention from Raven herself as she has sent many thanks for all the hard work.
Email: derrick[@]raven-symone.org
Website: http://www.raven-symone.org/