[CentOS] Error installing Postfix - Mysql Support

Hello:

 Does anyone have any idea how resolve this error on my server to install postfix with mysql support? Dedicated Server with CentOS 5.7 64 Bit.

 I get this dependency information when trying to use the command yum-y install postfix

 Error: Missing Dependency: libmysqlclient.so.15()(64bit) is needed by package 2:postfix-2.3.3-2.3.centos.mysql_pgsql.x86_64 (centosplus)
Error: Missing Dependency: libmysqlclient.so.15(libmysqlclient_15)(64bit) is needed by package 2:postfix-2.3.3-2.3.centos.mysql_pgsql.x86_64 (centosplus)
 You could try using --skip-broken to work around the problem
 You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest
At the command below:
root at server [/tmp]# ldconfig -p | grep libmysqlclient.so.15
        libmysqlclient.so.15 (libc6,x86-64) => /usr/lib/libmysqlclient.so.15
        libmysqlclient.so.15 (libc6,x86-64) => /usr/lib64/libmysqlclient.so.15

 I appreciate any information.

 Thanks