-
To unpack a pre-built Postfix package, execute the equivalent
of:
# umask 022
# gzip -d <outputfile.tar.gz | (cd / ; tar xvpf -)
The umask command is necessary for getting the correct permissions
on non-Postfix directories that need to be created in the process.
-
Create the necessary
mail_owner account and
setgid_group
group for exclusive use by Postfix.
-
Execute the postfix command to set ownership and permission
of Postfix files and directories, and to update Postfix configuration
files. If necessary, specify any non-default settings for
mail_owner
or
setgid_group on the postfix command line:
# postfix set-permissions upgrade-configuration \
setgid_group=xxx
mail_owner=yyy
With Postfix versions before 2.1 you achieve the same result
by invoking the post-install script directly.
