smtp auth using /etc/passwd and /etc/shadow

[Baker]

Hello.

psa-qmail-1.03-rh9.build75050824.12 authorizes smtp relaying via /var/qmail/users/poppasswd.

How do I enable smtp relay authorization via /etc/passwd and /etc/shadow? (I've read that there is a patch for this. Anyone applied it?)

advTHANKSance
Alan