install_postfix_advanced.s - policyd-spf h: increase 'void lookup limit'fro '2' to '5'.

install_postfix_advanced.sh

@@ -1086,6 +1086,10 @@ Header_Type = SPF
 #  skip SPF for internal networks if desired. Defaults are standard IPv4 and
 #  IPv6 localhost addresses.
 skip_addresses = 127.0.0.0/8,::ffff:127.0.0.0/104,::1
+
+# RFC 7208 adds a new processing limit called "void lookup limit" (See section
+# 4.6.4).  Default is 2, but it can be adjusted.
+Void_Limit = 5
 EOF
 if [[ $? -eq 0 ]] ; then
    echo_ok