Yes, I realize that many on this list are not CentOS fans, but the RHEL distro it's based on is the only one officially supported on a big chunk of our hardware (some older Dell boxes) so it's what we use. And because it's free, it's also used by a good number of sysadmins.
So the GOOD news is that after installing the recently released CentOS 6, I discovered that Sendmail is no longer the default MTA. The default is Postfix. Yay! Of course, that's old news to anyone running the full blown RHEL6, but I thought it was cool anyway. Congrats, Wietse. :) The BAD news is that while the installed version is newer than 2.3.3 (which was in CentOS 5), it's only 2.6.6. I suppose that's still progress, but I'm working on an updated version of my "Installing the latest Postfix on CentOS" blog article to walk people through using a spec file to build their own 2.8.4 RPM and upgrade with it. SteveJ
