running as non-root

Questions like this are going to get you no where.You need to be A LOT more specific. For instance:What Solaris rev are you running ?What "package" do you want to "run" as non-root ?Do you really mean "install" a Solaris package as non-root ?

You still need to be a bit more specific. This mail program - it is a MTA or MUA ?If a MTA, then you can use the su command at boot time to startup the application as the "mail" user e.g. su - mail -c "program"If a MUA, then I suggest using sudo.