I'd like to install qmail.
Answer:
All qmail releases are announced at
http://pobox.com/~djb/qmail.html. You can pick up the qmail
package there.
As of November 1998, the latest qmail package is qmail-1.03.tar.gz, with
MD5 checksum 622f65f982e380dbe86e6574f3abcb7c. This package has been
mirrored at hundreds of sites around the Internet. If you want to find a mirror
close to you, try ftpsearch,
http://ftpsearch.lycos.com.
Follow the step-by-step instructions in INSTALL in the qmail package. If
you are upgrading from a previous version, use UPGRADE instead of
INSTALL.
I'm thinking of moving the heaven.af.mil network over to qmail, but first
I'd like to give my users a chance to try out qmail without affecting current
sendmail deliveries. We're using NFS.
Answer:
Find a host in your network, say pc.heaven.af.mil, that isn't running an
SMTP server. (If people are using mail addresses @pc.heaven.af.mil, you
should already have an MX pointing pc.heaven.af.mil to your mail
hub.)
Set up a new MX record pointing lists.heaven.af.mil to
pc.heaven.af.mil. Install qmail on pc.heaven.af.mil. Replace pc
with lists in /var/qmail/control/*. Make the qmail man pages
available on all your machines.
Now tell your users about qmail. A user can forward joe@heaven.af.mil to
joe@lists.heaven.af.mil to have his mail delivered through qmail. He can
set up .qmail files; he can start running his own mailing lists
@lists.heaven.af.mil.
When you're ready to turn sendmail off, you can set up pc.heaven.af.mil as
your new mail hub. Add heaven.af.mil to
/var/qmail/control/locals, and change the heaven.af.mil MX
to point to pc.heaven.af.mil. Make sure you leave lists.heaven.af.mil
in /var/qmail/control/locals so that transition addresses will
continue to work.