pflogsumm <http://jimsun.linxnet.com/postfix_contrib.html> is a GPL'ed perl script which does postfix log file analysis and is widely used by postfix admins. It'd be nice if it were added back to the Red Hat postfix RPM (it's actually in Simon's RPMs which were the basis of the RH RPM)
A SRC RPM is available from Simon Mudd (originator of RH's postfix RPM) at http://www.wl0.org/~sjmudd/postfix/ftp/SRPMS/pflogsumm-1.0.4-3.src.rpm
added to postfix-2.0.18-1, which should show up in FC2