if [ $1 -le 1 ]; then
exit 0
fi
+[ -d /etc/postfix ] || mkdir /etc/postfix 2>/dev/null || :
for f in /etc/mail/{access,aliases,body_checks,bounce.cf.*,canonical,dynamicmaps.cf,generic,header_checks,main.cf,master.cf,postfix-files,relocated,transport,virtual}; do
f=${f##*/}
[ -f "/etc/mail/$f" ] && mv "/etc/mail/$f" "/etc/postfix/$f" 2>/dev/null || :