Seperated Postfix into submodule

SubModules/postfix/conf.sh

@@ -0,0 +1,14 @@
+##-------------##
+#    Postfix    #
+##-------------##
+
+sed -i 's/#inet_interfaces = all/inet_interfaces = loopback-only/g' /etc/postfix/main.cf
+sed -i 's/mydestination/#mydestination/g' /etc/postfix/main.cf
+sed -i 's/relayhost =/mydestination = '$hostname', localhost.'$hostname', '$hostname'/g' /etc/postfix/main.cf
+echo "bounce_notice_recipient = info@$domain" >> /etc/postfix/main.cf
+cat <<EOF > /etc/aliases
+# See man 5 aliases for format
+postmaster:    root
+root:          $email
+EOF
+newaliases