[Rspamd] Simplify forward host rule and add policy group to exceptions for fwd host

data/conf/rspamd/local.d/composites.conf

@@ -35,17 +35,8 @@ FORGED_W_BAD_POLICY {
   expression = "( ~g+:policies | ~R_SPF_NA) & ( ~FROM_NEQ_ENVFROM & ~FORGED_SENDER ) & !WHITELISTED_FWD_HOST"
   score = 3.0;
 }
-RBL_EXCLUDE_FWD_HOST {
-  expression = "-WHITELISTED_FWD_HOST & ^g:rbl"
-}
-SPF_EXCLUDE_FWD_HOST {
-  expression = "-WHITELISTED_FWD_HOST & (^R_SPF_PERMFAIL | ^R_SPF_SOFTFAIL | ^R_SPF_FAIL)"
-}
-HFILTER_EXCLUDE_FWD_HOST {
-  expression = "-WHITELISTED_FWD_HOST & ^g:hfilter"
-}
-NEURAL_EXCLUDE_FWD_HOST {
-  expression = "-WHITELISTED_FWD_HOST & ^g:neural"
+WL_FWD_HOST {
+  expression = "-WHITELISTED_FWD_HOST & (^g:rbl | ^g+:policies | ^g:hfilter | ^g:neural)"
 }
 UPSTREAM_CHECKS_EXCLUDE_FWD_HOST {
   expression = "(-SIEVE_HOST | -WHITELISTED_FWD_HOST) & (^UNITEDINTERNET_SPAM | ^SPAM_FLAG | ^KLMS_SPAM | ^AOL_SPAM | ^MICROSOFT_SPAM)"