PHP error happened

Technical information
Error type2
Error descriptionmysql_connect() [function.mysql-connect]: Access denied for user 'kenda5'@'localhost' (using password: YES)
URLwww.wildflowerdesign.biz/mailing/_Mailing_add.php?
Error file/home/kenda5/public_html/wildflower/mailing/include/dbconnection.php
Error line9
SQL query