In some cases, the uninstaller might not be able to remove some or all of your installation files. To do a final cleanup, remove the Messaging Server base directory and its contents. The default base directory is at the following location:
/opt/SUNWmsgsr
You can also remove the configuration directory for Messaging Server at the following location:
/var/opt/SUNWmsgsr
After uninstalling Messaging Server, undo any sendmail configuration for Messaging Server.