To install or upgrade cmm simply do the following from the root shell via SSH: cd /usr/src rm -fv /usr/src/cmm.tgz wget http://download.configserver.com/cmm.tgz tar -xzf cmm.tgz cd cmm sh install.sh rm -Rfv /usr/src/cmm* Then login to WHM and scroll to the bottom of the left hand menu and you should see "ConfigServer Mail Manage" If you want to uninstall, simply: cd /usr/src rm -fv /usr/src/cmm.tgz wget http://download.configserver.com/cmm.tgz tar -xzf cmm.tgz cd cmm sh uninstall.sh rm -Rfv /usr/src/cmm*