expanding aliases in postfix
Contributed by Michilimackinac 
Tagged: Postfix
Assuming an /etc/postfix/aliases file that looks like so:
postmaster: root
abuse: postmaster
root: kilroy
expand the aliases:
% postmap -q abuse `postconf -h alias_maps`
postmaster
% postmap -q postmaster `postconf -h alias_maps`
root
% postmap -q root `postconf -h alias_maps`
kilroy
%
Everything eventually goes to kilroy although postmap is expanding only the next alias.
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