[Rspamd] IP WL is no more a prefilter to prevent unsigned mail

data/conf/rspamd/local.d/multimap.conf

@@ -115,8 +115,8 @@ MAILCOW_DOMAIN_HEADER_FROM {
 IP_WHITELIST {
   type = "ip";
   map = "$LOCAL_CONFDIR/custom/ip_wl.map";
-  prefilter = "true";
-  action = "accept";
+  symbols_set = ["IP_WHITELIST"];
+  score = -100;
 }
 
 FISHY_TLD {