Important: You must perform this upgrade as the root user.
Perform the following steps to upgrade to the latest version of PureMessage on a single-server configuration:
Important: It is not recommended that you move any of the directories that are
located directly beneath /opt/pmx/in the PureMessage installation
directory. Directories such as postfix, postgres, etc
contain binary files and libraries that are required for PureMessage updates. Moving or
symlinking these directories could cause upgrades to fail.