Origin: upstream, https://svn.apache.org/viewvc/spamassassin/branches/3.4/lib/Mail/SpamAssassin/DnsResolver.pm?r1=1691992&r2=1691991&pathrev=1691992&view=patch
Bug: https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7223
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=821385

Index: spamassassin-3.4.1/lib/Mail/SpamAssassin/DnsResolver.pm
===================================================================
--- spamassassin-3.4.1.orig/lib/Mail/SpamAssassin/DnsResolver.pm
+++ spamassassin-3.4.1/lib/Mail/SpamAssassin/DnsResolver.pm
@@ -592,6 +592,9 @@ sub new_dns_packet {
   };
 
   if ($packet) {
+    # RD flag needs to be set explicitly since Net::DNS 1.01, Bug 7223	
+    $packet->header->rd(1);
+
   # my $udp_payload_size = $self->{res}->udppacketsize;
     my $udp_payload_size = $self->{conf}->{dns_options}->{edns};
     if ($udp_payload_size && $udp_payload_size > 512) {