[CentOS] Postfix not set top start after upgrade

[John Doe]

From: Micha Silver <micha at arava.co.il>

> I noticed that after the lastest yum update on CentOS 5.6 we get Postfix
> 2.3.3, but the status of the postfix service (chkconfig --list postfix)
> changes to off. So after a reboot, it doesn't start automatically. 
> I don't recall this ever happening before. Is this by design? A
> packaging error?

I did not see any chkconfig off in the rpm script...
  $ rpm -q --scripts postfix | grep chkconfig
  /sbin/chkconfig --add postfix
      /sbin/chkconfig --del postfix

JD