From: Brian (listbcnewnanutilities.org)
Date: Mon Dec 03 2007 - 21:11:57 CST

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> > Those are the only commands you need to use. Unless you have a
> > specific need to compile postfix, please use the yum/rpm packages
> > instead.
>
> Rather than removing sendmail, it's better to use the Red Hat alternatives
> system (type man alternatives for more info):
> sudo /usr/sbin/alternatives --set mta /usr/sbin/sendmail.postfix
>
> This sets up symbolic links so that the commands sendmail, mailq,
> newaliases, etc. use the Postfix equivalents instead of the ones from the
> sendmail package (the default out of the box).

Meh. Install 'system-switch-mail' and let it do that for you.

> > There is rarely a need to compile a package when using a distro like
> > Centos, and compiling is actually a bad thing, as it will break the
> > package management tools.
>
> It doesn't break the package management tools, but merely bypasses them.

Until someone runs 'yum update' or its equivalent on the box and fails
to notice that Postfix is in the list of packages to be updated. After
the update, the compiled version which 'bypasses' the package management
tools has been squashed and the custom compile has been rendered
useless.

Again, this is why Simon Mudd makes his SRPM (and binary) packages. So
users can build Postfix to their liking without losing the package
management capabilities. It's well-documented, he keeps it current, and
it works.

--Brian

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