From: Gary Smith on
> hello postfix network
> are you there a official version of centos postfix most days can be
> redhat
> this actual version is
> [root(a)r13151 ~]# rpm -qa | grep postfix
> postfix-pflogsumm-2.3.3-2.1.el5_2
> postfix-2.3.3-2.1.el5_2
> This version is outdated and is no longer supported
> how to keep the upstream of centos

CentOS/RedHat will always be outdating as they try to stay with binary compatible. Personally, I compile my own RPM's. I'm sure there are some current ones out there if you look around.