--- dnsmasq-2.86/src/forward.c	2021-09-09 04:21:22.000000000 +0800
+++ moded/src/forward.c	2021-09-13 04:53:42.685752000 +0800
@@ -1059,7 +1059,7 @@
      everything is broken */
 
   /* decrement count of replies recieved if we sent to more than one server. */
-  if (forward->forwardall && (--forward->forwardall > 1) && RCODE(header) == REFUSED)
+  if (forward->forwardall && (--forward->forwardall > 1) && ( RCODE(header) == REFUSED || RCODE(header) == SERVFAIL ) )
     return;
 
   /* We tried resending to this server with a smaller maximum size and got an answer.